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ClassDS
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Peking4th
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北京四中初中物理
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初三物理
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功和机械能
文件
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修改时间
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大小
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..
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1功
2020-09-22 02:05:04
101.6MB
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2机械效率
2020-09-22 02:05:10
137MB
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3功率
2020-09-22 02:05:15
104.4MB
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4动能和势能、机械能及其转化
2020-09-22 02:05:22
146.6MB
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