名词
中文翻译：Unknown
同义词：
['air inlet', 'air outlet', 'air duct', 'air vent', 'air intake', 'air exhaust', 'air intake valve', 'airexhaust valve']
例句：
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1. The ventilation system is designed to improve indoor air quality.
通风系统旨在改善室内空气质量。
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2. The engineers were working on the installation of a new ventilation orifice.
工程师们正在安装一个新的通风孔。
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3. The building's air conditioning system requires regular maintenance to ensure proper ventilation.
该建筑的空调系统需要定期维护，以确保良好的通风。