A detailed description is given of the problems in the channels for oiling of common oil systems in the large sets of ammonia units and the cleaning method and procedure.是什么意思_A detailed description is given of the problems in the channels for oiling of common oil systems in the large sets of ammonia units and the cleaning method and procedure.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句