大的角传动比意味着，对于给定的车轮转角，其转向盘转过的角度更大。

A higher ratio means that you have to turn the steering wheel more to get the wheels to turn a given distance.

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传动系角传动比低，则转向灵敏- - - - - -当你想将车轮转过一定角度时，不必把转向盘转很大的角度- - - - - -正是赛车所需要的。

The lower ratio gives the steering a quicker response — you don't have to turn the steering wheel as much to get the wheels to turn a given distance — which is a desirable trait in sports cars.

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实验表明，图像旋转过程中允许的最大倾斜角度为0.002弧度；

The maximum tilt angle of the image is 0. 002 radian;

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The angle is increasing at a steady rate, so we know it's going at a steady speed.

转过的角度以恒定速率增加,所以我们知道它以一个恒定的速度运动

耶鲁公开课 - 基础物理课程节选