Some cars have variable-ratio steering, which uses a rack-and-pinion gear set that has a different tooth pitch (number of teeth per inch) in the center than it has on the outside.

有些车的转向系角传动比是可变的，这种转向器采用齿轮齿条式，它在中间而不是外部，有不同的齿密度（每寸齿数）。

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When you turn the steering wheel, the gear spins moving the rack.

当转动转向盘时，齿轮即转动，而齿条就移动。

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The EPS system consists of EPS, the road surface condition, the steering gear rack, the steering operation.

电动转向器与路面条件、转向齿轮齿条、驾驶员的转向操作一起组成电动转向系统。

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Another distinguishing feature is the speed-sensitive power steering with rack-and-pinion steering gear: the power assistance is implemented electrohydraulically rather than just hydraulically.

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