它有一对齿条和齿轮，而且质量上乘。

It's a rack and pinion, and a good one at that.

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当其中一个可变叶片由一驱动源转动时，可变叶片阵列上的其他可变叶片通过齿条和小齿轮的相互作用而转动一个相同的量。

As one of the individual variable vanes is rotated by an actuation source, the other variable vanes of the variable vane array are rotated a like amount by the rack and pinion gear interface.

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该模型在普通转向器模型的基础上考虑了转向齿轮、齿条等构件的变形和液压特性对系统动力学特性的影响。

This model takes the effect of the steering gear and rack's deformation and the dynamic characteristic of hydraulic system into account on the basis of common steering system.

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