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1.The speed governor on the car is designed to keep the engine from overheating.
汽车上的调速器设计用来防止发动机过热。
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2.The engineer used a speed governor to control the rotation of the machine.
工程师使用调速器来控制机器的旋转。
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3. The speed governor was adjusted to match the speed of the train.
调速器被调整以匹配火车的速度。