A small amount of carboxy group and carboxamido-group, which are hydrolyzate of nitrile grouping, can be found in PAN.是什么意思_A small amount of carboxy group and carboxamido-group, which are hydrolyzate of nitrile grouping, can be found in PAN.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句