名词
中文翻译：停止器
同义词：
['stopper', 'stopper', 'stopper']
例句：
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1.The engineer used a stop plunger to prevent the machine from overheating.
工程师使用了一个止动器来防止机器过热。
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2.The plumber stopped the plunger and turned off the water valve.
水管工停止了止动器，关闭了水阀。
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3. The stop plunger was a crucial component in the safety system of the car.
止动器是汽车安全系统的一个关键部件。