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1. The new air conditioning system is totally-enclosed pipe-ventilated, providing excellentindoor air quality.
新空调系统是完全封闭的管道通风，提供优良的室内空气质量。
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2.The factory has installed a totally-enclosed pipe-ventilated system to reduce noise pollution.
工厂安装了完全封闭的管道通风系统以减少噪音污染。
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3.The design of the building incorporates totally-enclosed pipe-ventilated spaces to improve energy efficiency.
建筑设计中包含了完全封闭的管道通风空间以提高能源效率。