7512| 17
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這個(gè)鏈傳動(dòng)是否合理? |
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點(diǎn)評
人家上面還要輸送東西,,距離就需要那個(gè)數(shù),,用齒輪不合適
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點(diǎn)評
是認(rèn)真的么^_^
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點(diǎn)評
中心距114.3公差多大,?
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