Pipe &hose assembly is convenient and double-quick when assembly.There are three seal grooves at tube end for reducing leakage rate of refrigerant .是什么意思_Pipe &hose assembly is convenient and double-quick when assembly.There are three seal grooves at tube end for reducing leakage rate of refrigerant .在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句