汽車變速器作用：


1、改變傳動(dòng)比，擴(kuò)大驅(qū)動(dòng)輪轉(zhuǎn)矩和轉(zhuǎn)速的變化范圍，以適應(yīng)經(jīng)常變化的行駛條件，同時(shí)使發(fā)動(dòng)機(jī)在功率較高而油耗較低)的工況下工作；


2、在發(fā)動(dòng)機(jī)旋轉(zhuǎn)方向不變情況下，使汽車能倒退行駛；

144-6691卡特發(fā)電機(jī)組變速箱濾芯以客為尊

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144-6691卡特發(fā)電機(jī)組變速箱濾芯以客為尊