3092| 24
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求助,做題被判錯,到底誰正確? |
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點評
哦,看到批的了,那轉(zhuǎn)向符號的問題了
沒錯,是定軸輪系
百度上的沒錯。你是被批了幾個錯?也許老師教的時候是要標出轉(zhuǎn)向的正負
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