ventilation facilities是什么意思_ventilation facilities用英语怎么说_ventilation facilities的翻译_ventilation facilities翻译成_ventilation facilities的中文意思_ventilation facilities怎么读,ventilation facilities的读音,ventilation facilities的用法,ventilation facilities的例句

They used good ventilation facilities in the building.

他们在建筑里使用了好的通风设备.

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Without the ventilation facilities the indoor air quality of classrooms is even worse.

教室无主动换气设施,室内空气质量较差.

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