The filter element of QU-A, ZU-A, XU-A series is made of glass fibred, paper, wire mesh notched wire that of XU-A series is of wound brass...是什么意思_The filter element of QU-A, ZU-A, XU-A series is made of glass fibred, paper, wire mesh notched wire that of XU-A series is of wound brass...在线翻译_英语_读音_用法_例句