STUDIES ON CONTINUOUS ULTRASONIC BLOCK COPOLYMERIZATION OF HYDROXYETHYLCELLULOSE WITH POLY(ETHYLENE OXIDE)AND THE PROPERTIES OF THE COPOLYMER是什么意思_STUDIES ON CONTINUOUS ULTRASONIC BLOCK COPOLYMERIZATION OF HYDROXYETHYLCELLULOSE WITH POLY(ETHYLENE OXIDE)AND THE PROPERTIES OF THE COPOLYMER在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句