A composite film was prepared through the reaction of methylcellulose, polyamide, and alkyl ketene dimmer.Glycerol was used as a plasticizer.是什么意思_A composite film was prepared through the reaction of methylcellulose, polyamide, and alkyl ketene dimmer.Glycerol was used as a plasticizer.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句