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請(qǐng)教這個(gè)里面的結(jié)構(gòu)怎樣,?傳動(dòng)的原理是什么? |
點(diǎn)評(píng)
鏈條的驅(qū)動(dòng)轉(zhuǎn)速加快或減慢就可以改變速度;送距長(zhǎng)短只要將偏心量改變就成,。
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