自行車的結構問題 - 自行車
By Charlotte
at 2013-11-08T00:00
at 2013-11-08T00:00
Table of Contents
自行車的踏板軸心與「BB」主軸為何要設計成正反牙?以一般的機械設計正反牙是防止旋轉時會鬆脫!而全世界的自行車設計正好相反?若沒有上緊必定鬆脫掉落!所以有請行家解釋謝謝!
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自行車
All Comments
By Lucy
at 2013-11-09T02:47
at 2013-11-09T02:47
By Eden
at 2013-11-12T05:42
at 2013-11-12T05:42
By Eden
at 2013-11-10T20:45
at 2013-11-10T20:45
By Necoo
at 2013-11-11T08:00
at 2013-11-11T08:00
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