名词
中文翻译：全空气系统
同义词：
['air conditioning system', 'HVAC system']
例句：
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1.The new all-air system in the office is very efficient.
办公室的新全空气系统非常高效。
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2. The HVAC system in this room is designed to keep it cool and comfortable.
这个房间的HVAC系统设计用来保持凉爽和舒适。
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3.The all-air system has a low noise level, making it suitable for use in residential areas.
全空气系统噪音低，适合用于住宅区使用。