1. 差动齿轮：此前的CVT除主动带轮(Drive Pulley)、从动带轮(Driven Pulley)和差动齿轮(Differential Gear)3轴之外,还需要使用在CVT和差动齿轮之间逆转旋转方向的轴.

2. 差速器：这里的齿轮油指的是手动档变速箱或是差速器(Differential Gear)所需要的润滑油. 而自动档变速箱油则叫做Automatic Transmission Fluid,通常简称ATF. 转向助力液压油也叫做ATF.

3. 差速齿轮：diestock螺丝攻 | differential gear差速齿轮 | differential protection差动保护

4. 半轴齿轮：differential case 差速器壳 | differential gear 半轴齿轮 | differential gearbox , front axle 前桥减速器

1. a bevel gear that permits rotation of two shafts at different speeds
    used on the rear axle of automobiles to allow wheels to rotate at different speeds on curves

    Synonym: differential