名词
中文翻译：机械通风系统
同义词：
['机械通风设备、机械通风系统例句：1. The hospital uses a mechanical ventilation system to keep the air fresh in the operating room.（医院使用机械通风系统来保持手术室的空气新鲜。）']
例句：
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1. The hospital uses a mechanical ventilation system to keep the air fresh in the operating room.
医院使用机械通风系统来保持手术室的空气新鲜。
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2.The engineer designed a mechanical ventilation system that can filter out pollutants from the exhaust gases.
工程师设计了一个机械通风系统，可以过滤掉废气中的污染物。
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3. The new ventilation system has greatly improved the efficiency of the building's air circulation.
新的通风系统大大提高了建筑物空气流通的效率。