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【高中物理】生活小妙招:移动旅行箱的省力方式 原理例题精讲
分享移动旅行箱的省力方式例题精讲，拉动比向下推动更省力。
高中物理必修一（人教2019版）知识点归纳精讲77/86
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App01:13分享移动旅行箱的省力方式例题精讲，拉动比向下推动更省力。
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