Thermostatic expansion valve, produced by imported know how from ALCO in U.S.A., is with advanced charge method and with good performance.是什么意思_Thermostatic expansion valve, produced by imported know how from ALCO in U.S.A., is with advanced charge method and with good performance.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句