汽車變速器作用：


1、改變傳動比，擴大驅動輪轉矩和轉速的變化范圍，以適應經常變化的行駛條件，同時使發動機在功率較高而油耗較低)的工況下工作；


2、在發動機旋轉方向不變情況下，使汽車能倒退行駛；

供應126-1817卡特挖掘機變速箱濾芯訂購說明

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供應126-1817卡特挖掘機變速箱濾芯訂購說明