當彈簧繞成,無論多少圈,使彈簧失效的最大拉力是固定的,隻不過是拉多長才能達到這個力,彈簧短需拉得短而已。
所有跟帖:
• 謝水兄,大家那麽熱心,非常感謝, -motorcycle- ♂ (0 bytes) () 02/14/2015 postreply 07:29:53
• 謝水兄,大家那麽熱心,非常感謝, -motorcycle- ♂ (0 bytes) () 02/14/2015 postreply 07:29:53
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