The fresh air ventilator is an important equipment of air's quality regulating.
新风换气机是调节空气品质的重要设备，换热器是新风换气机的关键部件。
The result of analysis show that adopting the fresh air ventilator can reach to enhance energy efficiency.
基于这个分析，认为引入新风换气机可以达到节能的目的。
The Church is naturally ventilated, with fresh air supplied at floor level, and exhausted through a continuous roof ventilator.
教堂内设有自然通风系统，新鲜空气从地层进入，并由屋顶的抽风机排出室外。
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