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為什么同步帶傳動(dòng)的自行車(chē)不能替代鏈傳動(dòng)的自行車(chē),,大家開(kāi)動(dòng)腦筋聊聊看 |
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點(diǎn)評(píng)
后來(lái)發(fā)現(xiàn)有用同步帶做的自行車(chē),,很棒,,寬度不是問(wèn)題,帶里可以加鋼絲,,拉不長(zhǎng),。
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