4909| 21
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大家好!如下圖所示,1是主動(dòng)輪,2和4是張緊輪,3是從動(dòng)輪。對(duì)嗎?謝謝! |
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點(diǎn)評(píng)
沒(méi)從動(dòng)輪你在那玩自摸嗎
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點(diǎn)評(píng)
木工用的砂帶機(jī)。
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