名词
中文翻译：阻塞装置
同义词：
['blocking device', 'blocking mechanism', 'blocking unit']
例句：
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1. Thenew car has a blocking device that prevents the engine from overheating.
新车配备了一个阻止发动机过热的阻塞装置。
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2.The construction site had to be blocked off to prevent accidents.
为了预防事故，施工现场被封锁了。
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3. The engineer used a blocking device to clear the road of debris.
工程师使用了一个阻塞装置来清除道路的碎片。