{"id":2685,"date":"2014-05-12T16:46:40","date_gmt":"2014-05-12T08:46:40","guid":{"rendered":"\/?p=2685"},"modified":"2014-05-12T16:55:41","modified_gmt":"2014-05-12T08:55:41","slug":"%e9%9b%aa%e5%9c%b0%e6%bb%91%e6%9d%bf%e6%bb%91%e8%a1%8c%e7%89%a9%e7%90%86%e5%ad%b8","status":"publish","type":"post","link":"https:\/\/snowboard.com.tw\/?p=2685","title":{"rendered":"\u96ea\u5730\u6ed1\u677f\u6ed1\u884c\u7269\u7406\u5b78"},"content":{"rendered":"

$\"\"$ <\/p>\n

\u5728\u7db2\u8def\u4e0a\u6709\u4e00\u7bc7\u6587\u7ae0 The Physics Of Snowboarding<\/a><\/strong> \uff0c\u8ac7\u5230\u96ea\u5730\u6ed1\u677f\u7684\u7269\u7406\u5b78\uff0c\u628a\u4e00\u822c\u6ed1\u884c\uff0c\u5272\u96ea\u6ed1\u884c\uff0c\u751a\u81f3\u5230\u534a\u7ba1\u6ed1\u884c\uff0c\u5c31\u7269\u7406\u5b78\u7684\u89d2\u5ea6\u4f86\u63a2\u8a0e\u96ea\u5730\u6ed1\u677f\u3002\u539f\u6587\u5f88\u9577\uff0c\u975e\u7269\u7406\u76f8\u95dc\u79d1\u7cfb\u770b\u8d77\u4f86\u6709\u9ede\u5403\u529b\uff0c\u6240\u4ee5\u6211\u5011\u8acb\u5230\u4e86\u6ed1\u677f\u57fa\u5730\u7684\u5925\u4f34-\u8d99\u5143<\/a><\/strong>\uff0c\u540c\u6642\u4e5f\u662f\u540d\u51fa\u8272\u7684\u7269\u7406\u535a\u58eb\u4f86\u5473\u5927\u5bb6\u89e3\u8aaa\u96ea\u5730\u6ed1\u677f\u6ed1\u884c\u7269\u7406\u5b78\u3002(\u540c\u6587\u4e5f\u5728 \u8d99\u5143\u535a\u58eb\u7684\u5e03\u6d1b\u683c<\/a>\u4e2d)<\/p>\n

[toc]<\/code><\/p>\n

\u96ea\u5730\u6ed1\u677f\u6ed1\u884c\u7269\u7406\u5b78<\/h1>\n\u4e86\u89e3\u96ea\u677f\u6ed1\u96ea\u80cc\u5f8c\u7684\u7269\u7406\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6280\u8853\u5c64\u6b21\uff0c\u4e86\u89e3\u95dc\u9375\u539f\u7406\u53ef\u4ee5\u5e6b\u52a9\u505a\u51fa\u6b63\u78ba\u7684\u52d5\u4f5c\uff0c\u66f4\u53ef\u4ee5\u6539\u5584\u6ed1\u96ea\u8868\u73fe\u3002<\/span> \u6ed1\u96ea\u662f\u4e00\u500b\u5c07\u300c\u91cd\u529b\u4f4d\u80fd\u300d\u8f49\u63db\u6210\u524d\u9032\u901f\u5ea6\u7684\u300c\u52d5\u80fd\u300d\u7684\u4e00\u9805\u904b\u52d5\u3002\u6240\u4ee5\u7576\u5f80\u5c71\u8c37\u4e0b\u6ed1\u6108\u591a\uff0c\u5c31\u6703\u6709\u66f4\u5feb\u7684\u901f\u5ea6\u3002\u7b2c\u4e00\u5f35\u5716\u662f\u8aaa\u660e\u5728\u9661\u5761\u4e0a\uff0c\u53ef\u4ee5\u9760\u8457Z\u5b57\u5f62\u7684\u65b9\u5f0f\u4f86\u6709\u6548\u63a7\u5236\u901f\u5ea6\u3002\u800c\u73a9 heliski \/ helisnowboard \u53ef\u4ee5\u5f9e\u76f4\u6607\u6a5f\u4e0a\u4e00\u8e8d\u800c\u4e0b\u800c\u4e0d\u53d7\u50b7\uff0c\u5247\u662f\u56e0\u70ba\u5c71\u5761\u662f\u4e00\u500b\u659c\u9762\uff0c\u771f\u6b63\u6b63\u9762\u885d\u64ca\u7684\u5206\u91cf\u53ea\u4f54\u4e00\u5c0f\u90e8\u4efd\u3002<\/span> \u5716\u4e2d\u53ef\u4ee5\u770b\u51fa\u5176\u5be6\u8a72\u96ea\u53cb\u662f\u5e36\u908a\u5728\u6ed1\u7684\uff0c\u53ef\u4ee5\u85c9\u7531\u677f\u5b50\u8207\u96ea\u7684\u6469\u64e6\u529b\u4f86\u964d\u4f4e\u6ed1\u884c\u7684\u901f\u5ea6\u3002\u4e0d\u904e\u76f8\u5c0d\u65bc\u4f7f\u7528carving\u8f49\u5f4e\uff0cskidding\u662f\u6bd4\u8f03\u4e0d\u597d\u7684\u65b9\u5f0f\u3002<\/span> (\u9019\u6b21\u53bb La Thuile \u6703\u8b70\u7684\u4e3b\u8fa6\u55ae\u4f4d\u6709\u5b89\u6392ski\u6559\u7df4\u3002\u57fa\u672c\u4e0aski\u8207SB\u4e00\u6a23\uff0c\u9ad8\u7d1a\u8f49\u5f4e\u61c9\u8a72\u7528carving\u7684\u65b9\u5f0f\uff0c\u80fd\u5920\u5728\u4e0d\u964d\u4f4e\u901f\u5ea6\u7684\u65b9\u5f0f\u8f49\u5f4e\u3002\u50cf\u6211\u9019\u7a2e\u4e0d\u7ba1ski\u9084\u662fSB\u90fd\u5e36\u908a\u5728\u6ed1\u7684\uff0c\u5c31\u88ab\u8a13\u4e86\u8aaa\uff0c\u4e0d\u5b78\u597dcarving\u6280\u8853\u662f\u6703\u505c\u9813\u7121\u6cd5\u63d0\u5347\u7684… \u6ce3)<\/span> <\/p>\n <\/p>\n \u9996\u5148\u662f\u5e36\u908a\u7684\u729b\u5f0f\u8f49\u5f4e (Skidding)<\/h2>\n \u9019\u662f\u521d\u4e2d\u7d1a\u6216\u662f\u6bd4\u8f03\u6c92\u6709\u7d93\u9a57\u7684SB\u96ea\u53cb\u7684\u8f49\u5f4e\u65b9\u5f0f\uff1a\u96ea\u677f\u4ee5\u659c\u9762\u300c\u6383\u904e\u300d\u96ea\u9762\uff0c\u751a\u81f3\u662f\u6b63\u9762\u5728\u300c\u93df\u96ea\u300d\u3002\u56e0\u6b64\u6700\u5f8c\u5728\u6ed1\u884c\u7684\u901f\u5ea6\u4e0a\uff0c\u6703\u6709\u76f8\u7576\u7a0b\u5ea6\u7684\u640d\u5931\u3002\u9019\u662f\u56e0\u70ba\u9019\u88e1\u677f\u8207\u96ea\u7684\u6469\u64e6\u529b\uff0c\u9060\u9060\u5927\u65bc\u6253\u76f4\u677f\u5e73\u9762\u6ed1\u884c\u6642\u7684\u72c0\u614b\u3002<\/span> \u4ee5carving\u7684\u65b9\u5f0f\uff0c\u4f60\u53ef\u4ee5\u4fdd\u6301\u524d\u9032\u7684\u904b\u52d5\u65b9\u5411\uff0c\u8207\u96ea\u677f\u65b9\u5411\u5e73\u884c\u3002\u5728\u9019\u88e1\u677f\u8207\u96ea\u7684\u6469\u64e6\u529b\u5f88\u5c0f\uff0c \u5c31\u53ef\u4ee5\u4ee5\u66f4\u5feb\u7684\u901f\u5ea6\u901a\u904e\u96ea\u9053\u3002(\u662f\u9032\u968e\u677f\u53cb\u7684\u9ad8\u7d1a\u8f49\u5f4e\u65b9\u5f0f)<\/span> <\/p>\n \u5272\u96ea\u8f49\u5f4e (Carving)<\/h2>\n\u96ea\u677f\u7684\u5074\u908a(side cut)\u662f\u505a\u6210\u4e00\u500b\u5f27\u5ea6\u7684\uff0c\u9019\u500b\u5f27\u5ea6\u7684\u66f2\u7387\u534a\u5f91Rsc\uff0c\u5c31\u662f\u7406\u60f3\u4e0a\u8f49\u5f4e\u7684\u8ff4\u8f49\u534a\u5f91Rt\u3002(pure carving)<\/span> \u4f46\u662f\u7576\u96ea\u677f\u9762\u8207\u96ea\u9762\u6709\u4e00\u500b\u4ea4\u89d2Phi\u7684\u6642\u5019\uff0c\u9019\u500b\u677f\u908a\u5f27\u5ea6\u6295\u5f71\u5728\u96ea\u9762\u4e0a\uff0c\u5c31\u6703\u53d7\u5230\u5f71\u97ff\uff0c\u5be6\u969b\u7684\u6709\u6548\u66f2\u7387\u534a\u5f91\u5c31\u8b8a\u6210\u4e86 Rsc Cos(phi)\uff0c\u9019\u6642\u96ea\u677f\u5c31\u8d70\u5728\u4e00\u500b\u6a62\u5713\u908a\u4e0a\u3002\u9019\u6a23\u5b50\u4e00\u4f86\uff0c\u7121\u53ef\u907f\u514d\u7684\uff0c\u5c31\u6703\u589e\u52a0\u8f49\u5f4e\u6642 skidding \u7684\u91cf\uff0c\u9032\u800c\u589e\u52a0\u6469\u64e6\u529b\u5f71\u97ff\u5230\u6ed1\u884c\u7684\u901f\u5ea6\u3002\u7576\u677f\u5b50\u505a\u6210\u53cd\u66f2(?)\u7684\u5f62\u72c0(reverse camber)\uff0c\u96ea\u677f\u908a\u5c31\u80fd\u5920\u5373\u4f7f\u5728\u4e0d\u8207\u96ea\u9762\u5e73\u884c\u6642\uff0c\u4ecd\u7136\u8d70\u5728Rt’ = cos(phi)\u7684\u6b63\u5713\u908a\u4e0a\u3002<\/span> <\/p>\n \u6df1\u5165\u5272\u96ea\u8f49\u5f4e<\/h2>\n \u57fa\u672c\u4e0a\uff0c\u6700\u5927\u7684 reverse camber \u53d6\u6c7a\u65bc\u677f\u8207\u96ea\u9762\u7684\u89d2\u5ea6 phi\uff0c\u9084\u6709\u677f\u5b50\u7684\u5074\u908a\u66f2\u7387\u534a\u5f91\u3002\u4e00\u500b\u5074\u908a\u66f2\u7387\u534a\u5f91\u6bd4\u8f03\u5c0f\u7684\u677f\u5b50\uff0c\u5c31\u53ef\u4ee5\u63a5\u53d7\u66f4\u5927\u7684 reverse camber\uff0c\u4f86\u8f49\u4e00\u500b\u66f4\u5c0f\u534a\u5f91\u7684\u5f4e\u3002\u6709\u7d93\u9a57\u7684\u9078\u624b\u53ef\u4ee5\u6839\u64da\u5be6\u969b\u7684\u5730\u5f62\uff0c\u4f86\u8abf\u6574\u677f\u5b50\u8207\u96ea\u9762\u7684\u89d2\u5ea6\uff0c\u4f86\u9054\u6210\u4e0d\u540c\u7684\u8ff4\u8f49\u534a\u5f91\u3002<\/span><\/p>\n <\/p>\n\u5982\u4f55\u5728\u5272\u96ea\u8f49\u5f4e (carving turn) \u4e0b\u4fdd\u6301\u5e73\u8861<\/b><\/h3>\n\u5148\u524d\u63d0\u5230\u7684\uff0c\u7406\u60f3\u7684\u8f49\u5f4e\u662f\u4ee5\u5b8c\u5168\u5272\u96ea\u8f49\u5f4e\u7684\u65b9\u5f0f\u4f86\u5b8c\u6210\uff0c\u9019\u6a23\u5b50\u53ef\u4ee5\u628a\u56e0\u8f49\u5f4e\u800c\u640d\u5931\u7684\u901f\u5ea6\u964d\u5230\u6700\u4f4e\u3002\u4ee5\u4e0b\u4f86\u5206\u6790\u5272\u96ea\u8f49\u5f4e\u4e2d\u5404\u7a2e\u529b\u7684\u5e73\u8861\u3002<\/span> \u9996\u5148\u662f\u5b9a\u7fa9\u5ea7\u6a19\u8207\u4ee3\u865f\uff0c\u7531\u91cd\u529b\u65b9\u5411\u9020\u6210\u7684\u6548\u679c\u96a8\u6ed1\u96ea\u8005\u7684\u884c\u9032\u65b9\u5411\u6539\u8b8a\u3002<\/span> \u00a0<\/span><\/a><\/p>\n \ng \u91cd\u529b\u52a0\u901f\u5ea6\uff0c\u5730\u7403\u4e0a\u662f 9.8 m\/s^2<\/li>\n alpha \u662f\u5761\u5ea6\uff0c\u96f6\u5ea6\u4ee3\u8868\u6c34\u5e73\u9762<\/li>\n beta \u662f\u96ea\u677f\u884c\u9032\u65b9\u5411\u8207\u6c34\u5e73\u7dda\u7684\u4ea4\u89d2\uff0c\u6c34\u5e73\u7dda\u8207\u91cd\u529b\u65b9\u5411\u5782\u76f4<\/li>\n R_T \u662f\u8f49\u5f4e\u7684\u65cb\u8f49\u534a\u5f91<\/li>\nv \u662f\u6ed1\u96ea\u8005\u5207\u7dda\u65b9\u5411\u7684\u901f\u5ea6\uff0c\u6307\u5411\u6ed1\u96ea\u8005\u7684\u884c\u9032\u65b9\u5411\u3002<\/li>\n<\/ul>\n\u9019\u88e1\u6211\u5011\u5b9a\u7fa9 x-y \u5e73\u9762\uff0c\u8b93 y \u8ef8\u5782\u76f4\u65bc\u5761\u9762\uff0c\u800c x \u8ef8\u5728\u5761\u9762\u4e0a\u8207\u884c\u9032\u65b9\u5411\u5782\u76f4\u3002<\/span> (\u70ba\u4e86\u7c21\u5316\u8d77\u898b\uff0c\u9019\u88e1\u6211\u5011\u5047\u8a2d\u5761\u9762\u662f\u4e00\u500b\u5e73\u9762\uff0c\u5ffd\u7565\u4e09\u7dad\u7684\u6548\u61c9) \u518d\u4f86\u6211\u5011\u770b\u76f8\u5c0d\u65bc\u6ed1\u96ea\u8005\u7684\u5ea7\u6a19\u898f\u5283\u3002<\/span> \u00a0<\/span><\/a><\/p>\n \ntheta \u662f\u5761\u9762\u4e0a\u7684 x \u8ef8\u8207\u6ed1\u96ea\u8005\u8eab\u9ad4\u91cd\u5fc3\u7684\u4ea4\u89d2\uff0c\u4e5f\u5c31\u662f\u6ed1\u96ea\u8005\u50be\u659c\u8207\u96ea\u9762\u7684\u4ea4\u89d2\u3002<\/li>\n G \u662f\u6ed1\u96ea\u8005\u7684\u8cea\u91cf\u4e2d\u5fc3\uff0c\u9019\u5305\u542b\u4e86\u6ed1\u96ea\u8005\u8207\u96ea\u677f\uff0c\u6574\u500b\u8996\u70ba\u4e00\u500b\u525b\u9ad4\u3002<\/li>\n P \u662f\u96ea\u677f\u8207\u96ea\u9762\u63a5\u89f8\u7684\u8fd1\u4f3c\u9ede\u3002<\/li>\n L \u662f\u91cd\u5fc3 G \u8207 P \u9ede\u7684\u8ddd\u96e2<\/li>\n a_c \u662f\u4f4d\u65bc G \u9ede\u7684\u5411\u5fc3\u52a0\u901f\u5ea6\uff0c\u65b9\u5411\u6307\u5411 x \u8ef8\u5411\u8ff4\u8f49\u534a\u5f91\u7684\u5713\u5fc3\u3002<\/li>\n F_1 \u662f\u63a5\u89f8\u96ea\u9762 P \u65bd\u8207\u6ed1\u96ea\u8005\u7684\u652f\u6490\u529b\uff0c\u5728 x \u8ef8\u7684\u5206\u91cf\u3002<\/li>\nN_1 \u662f\u63a5\u89f8\u96ea\u9762 P \u65bd\u8207\u6ed1\u96ea\u8005\u7684\u652f\u6490\u529b\uff0c\u5728 y \u8ef8\u7684\u5206\u91cf\u3002<\/li>\n<\/ul>\n\u9019\u88e1\u6ed1\u96ea\u8005 G \u7684\u77ac\u6642\u901f\u5ea6 v \u662f\u6307\u51fa\u7d19\u9762(\u87a2\u5e55)\u7684\u3002<\/span> \u5728\u8cea\u5fc3 G \u5728\u7e3d\u529b\u5e73\u8861\u7684\u689d\u4ef6\u4e0b\uff0cy \u8ef8\u65b9\u5411\u7684\u7e3d\u529b(\u52a0\u901f\u5ea6)\u70ba\u96f6\u3002\u4e5f\u5c31\u662f\u8aaa\uff0c\u7576\u6ed1\u96ea\u8005\u8f49\u5f4e\u7684\u6642\u5019\uff0cy \u65b9\u5411\u7684\u7e3d\u529b\u70ba\u96f6\u53ef\u4ee5\u8868\u793a\u70ba\uff1a<\/span> N_1 – m g cos(alpha) = 0\u00a0\u00a0<\/span><\/span>(1)<\/b><\/i> \u9019\u88e1 m \u662f\u6ed1\u96ea\u8005\u8207\u96ea\u677f\u7684\u8cea\u91cf\u7e3d\u548c\u3002\u8003\u616e\u725b\u9813\u7b2c\u4e8c\u904b\u52d5\u5b9a\u5f8b\uff0c\u5728 x \u8ef8\u4e0a\uff1a<\/span> F_1 = m g sin(alpha) cos(beta) = m a_c\u00a0\u00a0<\/span><\/span>(2)<\/b><\/i> \u800c\u5411\u5fc3\u52a0\u901f\u5ea6\u53ef\u4ee5\u8868\u793a\u6210\uff1a<\/span> a_c = v^2 \/ R_T<\/span> \u5c07\u4e4b\u4ee3\u63db\u5230 (2) \u4e4b\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u5c07\u6574\u500b\u7cfb\u7d71\u8fd1\u4f3c\u6210\u4e00\u500b\u8f49\u52d5\u6163\u91cf\u5e73\u8861\uff0c\u4e5f\u5c31\u662f\u5c0d\u65bc\u8cea\u5fc3 G \u800c\u8a00\u7e3d\u89d2\u52d5\u91cf\u70ba\u96f6\u3002\u53ef\u4ee5\u7528\u4ee5\u4e0b\u6578\u5b78\u5f0f\u8868\u793a\uff1a<\/span> F_1 sin(theta) L – N_1 cos(theta) L = 0\u00a0\u00a0<\/span><\/span>(3)<\/b><\/i> \u7d50\u5408 (1) – (3) \u5f0f\uff0c\u6211\u5011\u53ef\u4ee5\u5f97\u5230\uff1a<\/span> tan(theta) = g cos(alpha) \/ g sin(alpha) cos(beta) + v^2\/R_T<\/span> \u8acb\u6ce8\u610f\u9019\u88e1\u8cea\u91cf m \u8207\u9577\u5ea6 L \u5df2\u7d93\u4e0d\u9700\u8981\u4e86\uff0c\u56e0\u70ba\u4ed6\u5011\u5df2\u7d93\u5728\u5f0f\u5b50\u4e2d\u7d04\u6389\u4e86\u3002<\/span> \u9019\u500b\u5f0f\u5b50\u8981\u600e\u9ebc\u7528\u5462\uff1f\u8209\u500b\u7c21\u55ae\u7684\u4f8b\u5b50\uff1a<\/span> \u7576\u67d0\u500b\u77ac\u9593 alpha = 20 \u5ea6(\u9019\u8981\u7b97\u7d05\u9053\u9084\u662f\u85cd\u9053\uff1f)\uff0cbeta = 60 \u5ea6\uff0c\u901f\u5ea6 5 m\/s (\u6642\u901f 18 \u516c\u91cc)\uff0c\u96ea\u677f\u5074\u908a\u7684\u5f27\u5ea6\u534a\u5f91 14.8 \u516c\u5c3a\uff0c\u96ea\u677f\u8207\u96ea\u9762\u4ea4\u89d2 phi = 30 \u5ea6\u3002\u9019\u6a23\u5b50\u50be\u89d2 theta \u61c9\u8a72\u662f\u591a\u5c11\u5462\uff1f<\/span> \u8981\u9054\u5230\u5b8c\u5168\u5272\u96ea\u8f49\u5f4e R_T = R_SC\uff0c\u6240\u4ee5\u00a0 R_T = R_SC cos(phi) = 14.8 cos(30) = 12.82 m\uff0c\u4e5f\u5c31\u662f theta = 68.5\u00b0<\/span> \u7576\u5728\u5761\u9762\u4e0a\u6ed1\u96ea\u7684\u6642\u5019\uff0c\u5728\u8f49\u5f4e\u7684\u904e\u7a0b\u4e2d\u8ff4\u8f49\u534a\u5f91 R_T \u4e0d\u6703\u662f\u4e00\u500b\u5b9a\u503c\uff0c\u6703\u6709\u8b8a\u52d5\u662f\u6b63\u5e38\u7684\u3002\u5c24\u5176\u662f\u91cd\u529b\u7684\u5206\u91cf\u5c0d\u65bc\u6ed1\u96ea\u8005\u5728\u8f49\u5f4e\u7684\u8ecc\u8de1\u4e2d\uff0c\u5982\u540c (2) \u6240\u793a\uff0cbeta \u6703\u96a8\u4e4b\u6539\u8b8a\u3002\u81ea\u7136\u5730\uff0c\u6ed1\u96ea\u8005\u7684\u50be\u89d2\uff0c\u9084\u6709\u96ea\u677f\u8207\u96ea\u9762\u7684\u4ea4\u89d2 phi \u4e5f\u8981\u914d\u5408\u8abf\u6574\uff0c\u6700\u5f8c\u9054\u5230\u6539\u8b8a R_T \u7684\u76ee\u7684\u3002\u9019\u4f7f\u5f97\u6ed1\u96ea\u7684\u7269\u7406\u5206\u6790\u8b8a\u5f97\u8907\u96dc\u3002<\/span> \u4e0b\u4e00\u500b\u90e8\u4efd\uff0c\u6211\u5011\u8981\u4f86\u5206\u6790\u9019\u500b\u96ea\u677f\u5207\u5165\u96ea\u9762\u7684\u89d2\u5ea6\uff0c\u4f86\u907f\u514d\u5728\u96ea\u4e0a\u767c\u751f\u5074\u6ed1\u3002<\/span> \u5728\u6b64\u4e4b\u524d\uff0c\u6709\u4e00\u4e9b\u9810\u5099\u77e5\u8b58\u9700\u8981\u5148\u4f86\u4e86\u89e3\u3002<\/span> <\/p>\n\u907f\u514d\u96ea\u677f\u5728\u96ea\u9762\u4e0a\u5074\u6ed1<\/h3>\n\u9019\u88e1\u6709\u5169\u500b\u96ea\u677f\u7269\u7406\u5b78\u8003\u616e\u7684\u9ede\uff1a\u6ed1\u96ea\u677f\u5982\u4f55\u6703\u767c\u751f\u5074\u6ed1\uff0c\u9084\u6709\u5982\u4f55\u4f86\u907f\u514d\u3002<\/span> \u9996\u5148\uff0c\u7576\u96ea\u677f\u5728\u4e00\u500b\u6c34\u5e73\u800c\u4e14\u5e73\u5766\u7684\u96ea\u9762\u4e0a\u6642\uff0c\u53ea\u8981\u6ed1\u96ea\u8005\u8173\u5c0d\u96ea\u677f\u7684\u65bd\u529b\uff0c<\/span> \u8207\u96ea\u677f\u7684\u5e73\u9762\u621090\u5ea6\uff0c\u5c31\u53ef\u4ee5\u907f\u514d\u767c\u751f\u5074\u6ed1\u3002\u9019\u662f\u7531\u65bc\u96ea\u9762\u8207\u96ea\u677f\u9593\u7684\u6469\u64e6\u529b\u975e\u5e38\u5c0f\uff0c\u53ea\u8981\u6709\u4e00\u9ede\u9ede\u6a6b\u5411\u7684\u5206\u529b\uff0c\u5c31\u6703\u4f7f\u5f97\u96ea\u677f(\u5074\u5411)\u6ed1\u52d5\u3002<\/span> \u7b2c\u4e8c\u9ede\u662f\u7576\u96ea\u677f\u5728\u659c\u5761\u96ea\u9762\u4e0a\u6642\uff0c\u6ed1\u96ea\u8005\u5fc5\u9808\u4ee5\u4e00\u500b\u50be\u89d2\u5c07\u96ea\u677f\u58d3\u5165\u96ea\u4e2d\uff0c\u624d\u80fd\u9632\u6b62\u6ed1\u52d5\u3002\u5982\u6b64\u4e00\u4f86\uff0c\u6ed1\u96ea\u8005\u65bd\u5728\u96ea\u677f\u4e0a\u8207\u96ea\u677f\u9762\u5e73\u884c\u7684\u5206\u91cf\uff0c\u6210\u70ba\u662f\u6307\u5411\u96ea\u4e2d\u7684\u529b\u91cf\u3002<\/span> \u6211\u5011\u4ee5\u4e0b\u9762\u7684\u5716\u793a\u4f86\u8aaa\u660e\uff1a<\/span> <\/a> \u6ed1\u96ea\u8005\u65bd\u529b\u65bc\u96ea\u677f\uff0c\u907f\u514d\u5728\u659c\u5761\u4e0a\u767c\u751f\u6ed1\u52d5\uff0c\u5176\u4e2d\uff1a<\/span><\/p>\n \nphi \u662f\u6ed1\u96ea\u677f\u8207\u96ea\u9762\u7684\u50be\u89d2<\/li>\n delta \u662f\u65bd\u529b\u65b9\u5411\u8207\u96ea\u9762\u7684\u4ea4\u89d2<\/li>\n psi \u662f\u65bd\u529b\u65b9\u5411\u8207\u6ed1\u96ea\u677f\u9762\u7684\u4ea4\u89d2<\/li>\nF_R \u5247\u662f\u6ed1\u96ea\u8005\u7684\u8173\u65bd\u8207\u6ed1\u96ea\u677f\u7684\u5408\u529b<\/li>\n<\/ul>\n\u8981\u907f\u514d\u6ed1\u52d5\uff0c psi \u89d2\u5fc5\u9808\u5927\u65bc\u6216\u7b49\u65bc90\u5ea6\u3002\u9019\u4e5f\u5c31\u662f\u8aaa F_R \u529b\u5e73\u884c\u65bc\u6ed1\u96ea\u677f\u9762\u7684\u5206\u91cf\uff0c\u5fc5\u9808\u70ba\u96f6(\u7576 phi = 90\u5ea6)\uff0c\u6216\u662f\u6307\u5411\u96ea\u4e2d(\u5f80\u5c71\u5cf0\u6216\u8ff4\u8f49\u4e2d\u5fc3)\uff0c\u4e5f\u5c31\u662f\u5f80\u53f3(\u7576 phi > 90 \u5ea6)\uff0c\u5982\u6b64\u4e00\u4f86\u96ea\u9762\u5c31\u50cf\u662f\u4e00\u9762\u9ad8\u7246\uff0c\u64cb\u4f4f\u96ea\u677f\u6ed1\u52d5\u3002<\/span> \u7136\u800c\u7576 psi \u89d2\u5c0f\u65bc 90 \u5ea6\u6642\uff0cF_R \u5728\u5e73\u884c\u65bc\u6ed1\u96ea\u677f\u9762\u7684\u5206\u91cf\uff0c\u6703\u5f80\u8ff4\u8f49\u5916\u5074(\u5f80\u5c71\u8c37)\uff0c\u4e5f\u5c31\u662f\u5f80\u793a\u610f\u5716\u7684\u5de6\u65b9\u3002(\u5c07\u96ea\u677f\u5e36\u96e2\u96ea\u677f\u58d3\u51fa\u7684\u6e9d)\u8acb\u6ce8\u610f\u6211\u5011\u9019\u88e1\u5ffd\u7565\u4e86\u96ea\u677f\u672c\u8eab\u7684\u91cd\u91cf\uff0c\u6240\u4ee5\u5be6\u969b\u4e0a\u7684\u95dc\u9375\u89d2\u5ea6\u5c07\u4e0d\u540c\u65bc90\u5ea6\u3002<\/span> \u5c31\u5730\u5f62\u800c\u8a00\uff0c\u8981\u907f\u514d\u5074\u5411\u6ed1\u52d5\uff0cdelta \u89d2\u5fc5\u9808\u5927\u65bc\u6216\u7b49\u65bc 90 – phi\u3002<\/span> \u6211\u5011\u53ef\u4ee5\u7528\u4e0a\u4e00\u7bc0\u7684\u7c21\u55ae\u4f8b\u5b50\uff0c\u4f86\u9a57\u8b49\u524d\u8ff0\u7684\u7269\u7406\u3002<\/span> \u9996\u5148\u5fc5\u9808\u6aa2\u67e5(\u6ed1\u96ea\u8005\u7684\u8173)\u65bd\u529b F_R \u8207\u6ed1\u96ea\u677f\u7684\u89d2\u5ea6\u3002\u9019\u88e1\u5ffd\u7565\u76f8\u5c0d\u8f03\u5c0f\u7684\u6ed1\u96ea\u677f\u8cea\u91cf\uff0c\u9019\u529b\u7b49\u65bc F1 \u8207 N1 \u65bd\u4e88\u6ed1\u96ea\u677f\u7684\u5927\u5c0f\uff0c\u4f46\u65b9\u5411\u76f8\u53cd\u3002\u7531\u65bc\u7cfb\u7d71\u662f\u65cb\u8f49\u5e73\u8861(\u6c92\u6709\u65cb\u8f49\/\u529b\u77e9)\uff0c\u4e5f\u5c31\u662f\u8aaa F1 \u8207 N1 \u90fd\u6703\u901a\u904e\u8cea\u5fc3 G \u9ede\u3002\u5373 delta \u89d2\u76f8\u540c\u65bc\u524d\u9762\u7684 theta \u50be\u89d2\u3002\u7576 delta = 68.5\u5ea6\uff0c\u662f\u5927\u65bc 90 – phi = 60 \u5ea6\u7684\u3002\u56e0\u6b64\u6ed1\u96ea\u677f\u4e0d\u6703\u767c\u751f\u5074\u6ed1\u3002<\/span><\/p>\n <\/p>\n \u7a7a\u4e2d\u7279\u6280<\/h2>\n \u6ed1\u96ea\u8005\u53ef\u4ee5\u5728\u7a7a\u4e2d\u8868\u6f14\u7684\u4e00\u4e9b\u7279\u6280\u3001\u65cb\u8f49\u3001\u7ffb\u6efe\u7b49\uff0c\u57fa\u672c\u4e0a\u662f\u85c9\u7531\u89d2\u52d5\u91cf\u7684\u5b88\u8861\u4f86\u9054\u6210\u7684\u3002\u7576\u6ed1\u96ea\u8005\u96e2\u958b\u5730\u9762\u5f8c\uff0c\u7e3d\u89d2\u52d5\u91cf\u5c31\u4e0d\u80fd\u518d\u6539\u8b8a\u4e86\u3002\u56e0\u6b64\u5728\u96e2\u958b\u5730\u9762\u524d\uff0c\u9700\u8981\u7d66\u81ea\u5df1\u4e00\u500b\u521d\u59cb\u7684\u65cb\u8f49\uff0c\u7136\u5f8c\u85c9\u7531\u8eab\u9ad4\u59ff\u52e2\u7684\u6539\u8b8a\uff0c\u4f86\u9054\u6210\u9019\u4e9b\u9a5a\u4eba\u7684\u52d5\u4f5c\uff0c\u4e26\u4fdd\u6301\u7e3d\u89d2\u52d5\u91cf\u5b88\u8861\u3002<\/span> \u5c0d\u9019\u4e9b\u7a7a\u4e2d\u7279\u6280\u4f86\u8aaa\uff0c\u6ed1\u96ea\u677f\u80cc\u5f8c\u7684\u7269\u7406\u8ddf\u6ed1\u9577\u677f\u662f\u975e\u5e38\u985e\u4f3c\u7684\u3002(\u6240\u4ee5\u96ea\u5b63\u904e\u5f8c\uff0c\u5c31\u8981\u9760\u9577\u677f\u4f86\u6b62\u7662\u4e86\uff01)<\/span> \u7167\u7247\u986f\u793a\u6ed1\u96ea\u8005\u524d\u8f49180\u5ea6<\/span> \u4e0b\u4e00\u7bc0\u5c07\u4ecb\u7d39\u534a\u7ba1\u4e2d\u5982\u4f55\u52a0\u901f\u3002<\/span> <\/p>\n\u5728\u534a\u7ba1\u4e2d\u52a0\u901f<\/h3>\n\u4e0b\u9762\u7167\u7247\u986f\u793a\u6ed1\u96ea\u8005\u812b\u96e2\u534a\u7ba1\u9032\u5165\u7a7a\u4e2d\u3002<\/span> \u6ed1\u96ea\u8005\u53ef\u4ee5\u5728\u534a\u7ba1\u4e2d\u52a0\u901f\uff0c\u7dad\u6301\u96d9\u8173\u56fa\u5b9a\u5728\u96ea\u677f\u4e0a\uff0c\u9019\u662f\u5982\u4f55\u9054\u6210\u7684\u5462\uff1f\u9019\u500b\u73fe\u8c61\u80cc\u5f8c\u7684\u57fa\u672c\u7269\u7406\uff0c\u662f\u53ef\u4ee5\u7531\u8f49\u52d5\u6163\u91cf\u8207\u89d2\u52d5\u91cf\u4f86\u7406\u89e3\u7684\u3002<\/span> \u70ba\u4e86\u589e\u52a0\u901f\u5ea6\uff0c\u6ed1\u96ea\u8005\u5728\u76f4\u7dda\u6bb5\u8e72\u4f4e\uff0c\u7576\u9032\u5165\u534a\u7ba1\u7684\u66f2\u9762\u6642\uff0c\u7ad9\u8d77\u8eab\u4f86\u4e26\u8209\u8d77\u96d9\u624b\uff0c\u8b93\u81ea\u5df1\u53ef\u4ee5\u5728\u96e2\u958b\u534a\u7ba1\u6642\u6709\u66f4\u9ad8\u7684\u901f\u5ea6\u3002<\/span> \u4ee5\u4e0b\u8aaa\u660e\u6ed1\u96ea\u677f\u7269\u7406\u5728\u534a\u7ba1\u7684\u6a5f\u5236\uff1a<\/span> <\/a> \u9019\u88e1<\/span> <\/p>\n \nw_i \u662f\u521d\u59cb\u6ed1\u96ea\u8005\u8eab\u9ad4\u7684\u89d2\u901f\u5ea6\uff0c\u65bc\u4f4d\u7f6e (1)<\/li>\n w_f \u662f\u6700\u7d42\u89d2\u901f\u5ea6\uff0c\u65bc\u4f4d\u7f6e (2) \u4e5f\u5c31\u662f\u812b\u96e2\u534a\u7ba1\u7684\u4f4d\u7f6e<\/li>\n V_i \u662f\u521d\u59cb\u8cea\u5fc3 G \u901f\u5ea6\uff0c\u65bc\u4f4d\u7f6e (1)<\/li>\n V_f \u662f\u6700\u7d42\u8cea\u5fc3 G \u901f\u5ea6\uff0c\u65bc\u4f4d\u7f6e (2)<\/li>\n r_i \u662f\u521d\u59cb\u8ff4\u8f49\u534a\u5713\u5713\u5fc3 O \u8207\u8cea\u5fc3 G \u7684\u8ddd\u96e2\uff0c\u65bc\u4f4d\u7f6e (1)<\/li>\n r_f \u662f\u6700\u7d42\u8ff4\u8f49\u534a\u5713\u8207\u8cea\u5fc3 G \u7684\u8ddd\u96e2\uff0c\u65bc\u4f4d\u7f6e (2)<\/li>\n g \u662f\u91cd\u529b\u52a0\u901f\u5ea6<\/li>\n N \u662f\u5730\u9762\u65bd\u8207\u96ea\u677f\u7684\u4f5c\u7528\u529b<\/li>\n F \u662f\u5730\u9762\u65bd\u8207\u96ea\u677f\u7684\u6469\u64e6\u529b<\/li>\n<\/ul>\n \u9019\u88e1\u5047\u8a2d\u534a\u7ba1\u662f\u7406\u60f3\u7684\u534a\u5713\uff0c\u5713\u5fc3\u5728 O\uff0c\u4e26\u4e14\u7c21\u5316\u6210\u4e8c\u7dad\u7a7a\u9593\u5206\u6790\u3002\u5728\u7e3d\u89d2\u52d5\u91cf\u5b88\u8861\u4e0b\uff0c\u6211\u5011\u4f86\u770b\u8f49\u52d5\u6163\u91cf\u8207\u89d2\u52d5\u91cf\u7684\u65b9\u7a0b\u5f0f\uff1a<\/span> I_oi w_i + Sum Int{t_i, t_f} M_o dt = I_of w_f<\/span> I_oi \u662f\u521d\u59cb\u8f49\u52d5\u6163\u91cf(\u6ed1\u96ea\u8005\u52a0\u96ea\u677f)\uff0c\u65bc\u4f4d\u7f6e (1)<\/span> I_of \u662f\u6700\u7d42\u7684\u8f49\u52d5\u6163\u91cf\uff0c\u65bc\u4f4d\u7f6e (2)<\/span> Sum M_o \u662f\u5c0d\u65bc O \u9019\u9ede\u7684\u52d5\u91cf\u7684\u7e3d\u548c\uff0c\u52d5\u91cf\u7531\u958b\u59cb\u6642\u9593\u65bc\u4f4d\u7f6e (1) \u7a4d\u5206\u5230\u6700\u7d42\u7684\u6642\u9593\u65bc\u4f4d\u7f6e (2)\u3002<\/span> \u9019\u88e1\u6211\u5011\u5047\u8a2d\u4ee5\u525b\u9ad4\u8655\u7406\uff0c\u5373\u4f7f\u6ed1\u96ea\u8005\u7684\u8f49\u52d5\u6163\u91cf\u5728\u9019\u5169\u9ede\u4e4b\u9593\u6709\u6539\u8b8a\u3002\u5c31\u7d50\u8ad6\u800c\u8a00\uff0c\u6211\u5011\u53ea\u9700\u8981\u77e5\u9053\u8d77\u59cb\u9ede\u8207\u7d42\u9ede\u8eab\u9ad4\u7684\u8f49\u52d5\u6163\u91cf\u5927\u5c0f\u3002<\/span> \u7531\u65bc\u5730\u9762\u5c0d\u65bc\u6ed1\u96ea\u8005\u7684\u4f5c\u7528\u529b N \u901a\u904e O \u9ede\uff0c\u6240\u4ee5\u4e0d\u6703\u9020\u6210\u89d2\u52d5\u91cf\u7684\u8b8a\u5316\u3002\u6469\u64e6\u529b F \u5920\u5c0f\uff0c\u5728\u9019\u88e1\u53ef\u4ee5\u5ffd\u7565\u4e0d\u8a18\u3002\u6240\u4ee5\u5269\u4e0b\u4f86\u7684\uff0c\u5c31\u53ea\u6709\u91cd\u529b g \u5c0d\u65bc\u6ed1\u96ea\u8005\u8207 O \u9ede\u7684\u8ca2\u737b\u3002(\u9019\u88e1\u540c\u6642\u8003\u616e\u6ed1\u96ea\u8005\u8207\u96ea\u677f)<\/span> \u6211\u5011\u53ef\u4ee5\u5c07 w_f \u7368\u7acb\u51fa\u4f86\uff1a<\/span> w_f = (I_oi w_i + Sum Int{t_i, t_f} M_o dt) \/ I_of<\/span> I_oi = I_Gi + m r_i^2<\/span> I_of = I_Gf + m r_f^2<\/span> \u9019\u88e1\uff0c\u5c0d\u65bc\u4f4d\u7f6e (1) \u548c (2) \u7684\u8f49\u52d5\u6163\u91cf\u70ba\uff1a<\/span> I_Gi \u662f\u521d\u59cb\u8f49\u52d5\u6163\u91cf\u5728 G \u4e0a\u65bc\u4f4d\u7f6e (1)\uff0c\u5411\u5782\u76f4\u9801\u9762\u5f80\u5916\u7684\u65b9\u5411\u3002<\/span> I_Gf \u662f\u6700\u7d42\u8f49\u52d5\u6163\u91cf\u5728 G \u4e0a\u65bc\u4f4d\u7f6e (2)\uff0c\u5411\u5782\u76f4\u9801\u9762\u5f80\u5916\u7684\u65b9\u5411\u3002<\/span> m \u662f\u6ed1\u96ea\u8005\u7684\u8cea\u91cf<\/span> \u5728\u4ee5\u4e0a\u7684\u65b9\u7a0b\u5f0f\u4e2d\uff0c\u6211\u5011\u6e1b\u5c11 I_of\uff0c\u800c\u89d2\u901f\u5ea6 w_f \u53ef\u4ee5\u6bd4\u539f\u5148(\u4e0d\u6539\u8b8a I_of)\u589e\u52a0\u7684\u66f4\u591a\u3002\u5be6\u52d9\u4e0a\uff0c\u6211\u5011\u53ef\u4ee5\u85c9\u7531\u6e1b\u5c11\u8cea\u91cf\u4e2d\u5fc3 G \u5230 O \u9ede\u7684\u8ddd\u96e2\u4f86\u9054\u6210\u3002\u63db\u53e5\u8a71\u8aaa\uff0c\u6e1b\u5c11 r_f \u53ef\u4ee5\u589e\u52a0 w_f\u3002\u8981\u6ce8\u610f\u4e00\u9ede\uff0c\u5be6\u969b\u4e0a I_Gf \u8ddf Sum M_o \u4e5f\u6703\u6539\u8b8a\uff0c\u4f46\u4e3b\u8981\u7684\u8ca2\u737b\u5728\u65bc r_f\u3002<\/span> \u5728\u4f4d\u7f6e (1) \u548c (2)\uff0c\u8cea\u5fc3 G \u7684\u901f\u5ea6\u53ef\u4ee5\u8868\u793a\u70ba\uff1a<\/span> V_i = w_i * r_i<\/span> V_f = w_f * r_f<\/span> \u6ed1\u96ea\u8005\u7684\u8cea\u5fc3\u901f\u5ea6\u5728\u4f4d\u7f6e (1) \u548c (2)<\/span> \u9019\u5169\u500b\u901f\u5ea6\u5728\u4f4d\u7f6e (1) \u548c (2) \u90fd\u8207\u534a\u7ba1\u7684\u66f2\u9762\u5e73\u884c\uff0c\u9019\u88e1\u6211\u5011\u5047\u8a2d\u525b\u9ad4\u904b\u52d5\u3002<\/span> \u4ee5\u4e0a\u95dc\u65bc\u901f\u5ea6\u7684\u65b9\u7a0b\u5f0f\uff0c\u5047\u4f7f\u6ed1\u96ea\u8005\u80fd\u5c07 r_f \u6e1b\u5230\u5920\u5c0f(\u85c9\u7531\u8d77\u8eab\u4e26\u8209\u8d77\u96d9\u81c2)\uff0c\u5c07\u53ef\u4ee5\u6709\u6548\u5730\u589e\u52a0\u89d2\u901f\u5ea6 w_f\u3002\u9019\u5c07\u53ef\u4ee5\u8b93\u812b\u96e2\u534a\u7ba1\u6642\u7684\u901f\u5ea6 V_f \u9054\u5230\u66f4\u9ad8\u3002<\/span> \u85c9\u7531\u9023\u7e8c\u5730\u5728\u66f2\u9762\u4e0a\u7684\u5f80\u5fa9\u904b\u52d5(\u5728\u534a\u7ba1\u6700\u4f4e\u9ede\u8e72\u4f4e\u7136\u5f8c\u8d77\u8eab\u4e26\u8209\u5176\u96d9\u81c2)\uff0c\u6ed1\u96ea\u8005\u53ef\u4ee5\u6301\u7e8c\u5730\u589e\u52a0\u901f\u5ea6\uff0c\u6700\u5f8c\u53ef\u4ee5\u9054\u5230\u8db3\u5920\u7684\u9ad8\u5ea6\u4f86\u5f9e\u4e8b\u4e0d\u540c\u7684\u7a7a\u4e2d\u7279\u6280\u3002<\/span> \u7528\u4e00\u500b\u66f4\u76f4\u89ba(\u4e0d\u7528\u6578\u5b78)\u7684\u8aaa\u6cd5\u4f86\u89e3\u91cb\uff0c\u85c9\u7531\u5f80\u5fa9\u904b\u52d5(pumping)\u4f86\u5c0d\u7cfb\u7d71\u6240\u505a\u7684\u529f\uff0c\u53ef\u4ee5\u8f49\u8b8a\u6210\u96e2\u958b\u534a\u7ba1\u6642\u66f4\u5feb\u7684\u901f\u5ea6\u3002\u6211\u5011\u53ef\u4ee5\u5c07\u6b64\u985e\u6bd4\u65bc\u5c0f\u670b\u53cb\u76ea\u97a6\u97c6\u6642\uff0c\u4ee5\u8e72\u8d77\u7684\u52d5\u4f5c\uff0c\u4f86\u589e\u52a0\u64fa\u76ea\u52a0\u901f\u800c\u76ea\u5f97\u66f4\u9ad8\u7684\u65b9\u5f0f\u4e00\u6a23\u3002\u7576\u7136\u9019\u80cc\u5f8c\u7684\u7269\u7406\u4e5f\u662f\u985e\u4f3c\u7684\u3002<\/span> \u5728\u6ed1\u96ea\u8005\u8d77\u8eab\u4e26\u8209\u8d77\u96d9\u81c2\u7684\u904e\u7a0b\u4e2d\uff0c\u4ed6\u5c07\u6703\u611f\u53d7\u5230\u7531\u65bc\u65cb\u8f49\u9020\u6210\u7684\u5411\u5fc3\u529b\uff0c\u5c07\u4ed6\u7531 O \u9ede\u5f80\u5916\u7684\u65b9\u5411\u63a8\u958b\u3002\u9019\u963b\u529b\u8b49\u660e\u4e86\u6ed1\u96ea\u8005\u6240\u505a\u7684\u529f\uff0c\u6703\u8f49\u6210\u80fd\u91cf\u52a0\u5230\u7cfb\u7d71\u7576\u4e2d\uff0c\u6700\u5f8c\u5f62\u6210\u66f4\u9ad8\u7684\u52d5\u80fd(\u901f\u5ea6)\u8207\u4f4d\u80fd(\u9ad8\u5ea6)\u3002<\/span> \u6700\u5f8c\u4e00\u5c0f\u7bc0\uff0c\u6211\u5011\u4f86\u770b\u95dc\u65bc\u6ed1\u96ea\u677f\u7684\u4fdd\u990a\uff0c\u4f86\u7dad\u6301\u6700\u4f73\u8868\u73fe\u3002<\/span> <\/p>\n \u6ed1\u96ea\u677f\u4fdd\u990a<\/h2>\n\u6ed1\u96ea\u677f\u7684\u4fdd\u990a\uff0c\u57fa\u65bc\u6ed1\u96ea\u677f\u7684\u7269\u7406\uff0c\u5728\u65bc\u6700\u4f73\u5316\u96ea\u677f\u5728\u96ea\u9762\u4e0a\u7684\u8868\u73fe\uff0c\u53ef\u4ee5\u6b78\u7d0d\u70ba\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/span><\/p>\n \n\u5c07\u96ea\u677f\u8207\u96ea\u9762\u63a5\u89f8\u7684\u8868\u9762\u4e0a\u881f\uff0c\u53ef\u4ee5\u9632\u6b62\u6c34\u4fb5\u5165\u9020\u6210\u96ea\u677f\u7684\u640d\u58de\u3002\u881f\u4e5f\u53ef\u4ee5\u907f\u514d\u96ea\u677f\u5e95\u90e8\u6709\u904e\u591a\u7684\u6c34\u84c4\u7a4d\uff0c\u4f86\u6e1b\u5c11\u6f6e\u6ebc\u8868\u9762\u7684\u963b\u529b(\u5438\u9644\u529b)\u3002<\/li>\n \u5c07\u96ea\u677f\u7684\u677f\u908a\u7528\u78e8\u77f3\u78e8\u5229\uff0c\u5c07\u6709\u52a9\u65bc\u8f49\u5f4e\u8207\u677f\u908a\u7684\u63a7\u5236\u3002<\/li>\n<\/ul>\n <\/p>\n","protected":false},"excerpt":{"rendered":" \u5728\u7db2\u8def\u4e0a\u6709\u4e00\u7bc7\u6587\u7ae0 The Physics Of Snowboarding \uff0c\u8ac7\u5230\u96ea\u5730\u6ed1\u677f\u7684\u7269\u7406\u5b78\uff0c\u628a\u4e00\u822c\u6ed1\u884c\uff0c\u5272\u96ea\u6ed1\u884c\uff0c\u751a\u81f3\u5230\u534a\u7ba1\u6ed1\u884c\uff0c\u5c31\u7269\u7406\u5b78\u7684\u89d2\u5ea6\u4f86\u63a2\u8a0e\u96ea\u5730\u6ed1\u677f\u3002\u539f\u6587\u5f88\u9577\uff0c\u975e\u7269\u7406\u76f8\u95dc\u79d1\u7cfb\u770b\u8d77\u4f86\u6709\u9ede\u5403\u529b\uff0c\u6240\u4ee5\u6211\u5011\u8acb\u5230\u4e86\u6ed1\u677f\u57fa\u5730\u7684\u5925\u4f34-\u8d99\u5143\uff0c\u540c\u6642\u4e5f\u662f\u540d\u51fa\u8272\u7684\u7269\u7406\u535a\u58eb\u4f86\u5473\u5927\u5bb6\u89e3\u8aaa\u96ea\u5730\u6ed1\u677f\u6ed1\u884c\u7269\u7406\u5b78\u3002<\/p>\n","protected":false},"author":1,"featured_media":1615,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[29,212],"tags":[47,292,40,291,162],"class_list":["post-2685","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-freeride","category-212","tag-snowboard-2","tag-292","tag-40","tag-291","tag-162","et-has-post-format-content","et_post_format-et-post-format-standard"],"_links":{"self":[{"href":"https:\/\/snowboard.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/2685","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/snowboard.com.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/snowboard.com.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/snowboard.com.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/snowboard.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2685"}],"version-history":[{"count":0,"href":"https:\/\/snowboard.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/2685\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/snowboard.com.tw\/index.php?rest_route=\/wp\/v2\/media\/1615"}],"wp:attachment":[{"href":"https:\/\/snowboard.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2685"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/snowboard.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2685"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/snowboard.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}