它的意思是套筒和螺帽有一些間隙，所以在施力於螺帽前會轉动一些，套筒的慣量可以增加扭力

来源: khyang86 于 2023-03-13 21:46:42 [旧帖] [给我悄悄话] 本文已被阅读：次

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