名词
中文翻译：Unknown
同义词：
['air ventilation', 'exhaust system', 'ventilation ducts', 'ventilation fan']
例句：
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1. The hospital has a sophisticated air ventilation system to ensure the cleanliness of the environment.
这家医院有一个复杂的空气通风系统，以确保环境的清洁。
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2. The exhaust system in the factory is designed to remove harmful gases from theproduction area.
工厂中的排气系统被设计用来从生产区域去除有害气体。
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3.The ventilation ducts are essential for maintaining proper air circulation in the building.
通风管道对于保持建筑物内的空气流通至关重要。