然后是六速变速箱、巡航控制系统、空调、报警和固定器。
Then there is the six-speed gearbox; cruise control; air-conditioning; alarm and immobiliser.
由于不再需要变速箱、离合器、变速器和差速器，汽车可以呈现各种形状和尺寸。
Because a gearbox, clutch, transmission and differential unit are no longer needed, vehicles could assume all sorts of shapes and sizes.
但电动轿车只采用基本的马达和变速箱，零部件相对较少。
But electric cars use only basic motors and gearboxes, and have relatively few parts.
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