Each crate held a ten-inch round gear and steel pinion that form an essential part of the Tundra rear axles.

每个箱子都装上了10英寸大的圆形零件，这些零件对于丰田汽车的后轴来说必不可少。

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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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The starter motor is a simple direct current (DC) motor which has a pinion gear attached to its shaft.

启动电机是一个简单的直流电机，在它的轴上有一个小齿轮。

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Other advances included rubber cone independent suspension, designed by Alex Moulton (who incidentally, went on to design the Moulton bicycle -- another of my favorite designs), rack and pinion steering and a monocoque body that eliminated the need for a costly separate chassis.

CNN: A design classic

You name it, they have run a railway up it, by hook or by crook, by rack or by pinion and by Albula and St Moritz.

BBC: Full steam ahead