大联合中央空调系统采用集中式中央空调一次回风系统。

The unite central air-conditioning system adopts concentrative central air-condition in which wind circles one times.

youdao

大联合中央空调系统采用集中式中央空调一次回风系统。

The unite central air-conditioning system adopts concentrative central air-condition in which wind circles one times.

youdao