2873| 15
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60公斤中的長方體,求翻轉(zhuǎn)力矩要怎么算? |
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點評
是啊,機械的門檻就這么低了,
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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