2624| 6
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平面力偶問(wèn)題 |
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點(diǎn)評(píng)
說(shuō)得好,贊一個(gè)
力偶對(duì)平面任一點(diǎn)的轉(zhuǎn)矩都是相同的,潛意識(shí)里認(rèn)為兩個(gè)旋轉(zhuǎn)中心不一樣,那這兩個(gè)就不是同一個(gè)剛體了
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