Filling: Automatically fill refrigerant into the perfectly sealed air-condition system with a fixed quantity.

加注：在确定空调系统密封性良好的情况下，进行自动定量加注。

youdao

Filling: Automatically fill refrigerant into the perfectly sealed air-condition system with a fixed quantity.

加注：在确定空调系统密封性良好的情况下，进行自动定量加注。

youdao