不好，圆周运功->直线往复->直线往复-> 圆周运动犹于脱了裤子放屁，传动损失也大

来源: bushihandyman 于 2019-08-07 17:48:28 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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