Two set of DAF sewage disposal equipment of U.S.A were introduced into Jinzhou mechanical work section in 1999,which were used to treated containing oil sewage.是什么意思_Two set of DAF sewage disposal equipment of U.S.A were introduced into Jinzhou mechanical work section in 1999,which were used to treated containing oil sewage.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句