Gratf copolymer has bigger specific surface area than homopolymer in spatial structure,which is propitious to bridging.That is why SGM can ...是什么意思_Gratf copolymer has bigger specific surface area than homopolymer in spatial structure,which is propitious to bridging.That is why SGM can ...在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句