Corrosion failure case of U type tube in carbon steel heat exchanger has been analysised by means of XRD,EPMA and electrochmistry methods.是什么意思_Corrosion failure case of U type tube in carbon steel heat exchanger has been analysised by means of XRD,EPMA and electrochmistry methods.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句