He spun the wheel sharply and made a U turn in the middle of the road.

他猛打方向盘，在路中间掉了个头。

《柯林斯英汉双解大词典》

A hydraulic clamp, which prevents the arms of the wheel moving while the gondola is docked, is removed, allowing the wheel to turn.

液压夹具可防止贡多拉停靠时轮子的臂部移动，移除这个液压夹具可以让轮子转动起来。

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The motion of a pendulum rocks this device so that it catches and then releases each tooth of the escape wheel, in turn allowing it to turn a precise amount.

钟摆的运动使这个装置晃动，如此一来这个装置能抓住擒纵轮的每一个齿，随后又将其释放，因而使其精确转动一段距离。

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Going backwards it doesn't work like that - you get a really sharp turn with little use of the wheel.

BBC: Who, what, why: How do you parallel park?

Using a series of sensors, cameras and servos the car is able to turn the steering wheel plus activate the throttle and the shifter to navigate across this stretch of road, relying on the road markings painted on the floor to both keep it driving in a straight line and to have it stop, respectfully, at the crosswalk.

ENGADGET: Nissan NSC-2015 self-driving car with LTE and smartphone connectivity (test-ride with video)