名词
中文翻译：Unknown
同义词：
['air vent', 'air purifier', 'exhaust fan', 'exhaust hood', 'exhaust system', 'ventilation system', 'ventilation unit', 'ventilation hood', 'ventilation system', 'ventilation unit', 'ventilator']
例句：
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1. The hospital has installed a new ventilation appliance to improve the air quality in the operating room.
医院安装了新的通风设备，以改善手术室的空气质量。
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2. The engineers designed a ventilation appliance that can effectively remove pollutants from the factory's exhaust gases.
工程师们设计了一种通风设备，能够有效地从工厂的废气中去除污染物。
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3. The ventilation appliance is essential for maintaining a healthy indoor environment.
通风设备对于保持室内空气健康至关重要。