CHN was chemically modified by etherifying the hydroxymethyl to introduce dodecanyl groups and using benzaldehyde to protect NH_2 groups .是什么意思_CHN was chemically modified by etherifying the hydroxymethyl to introduce dodecanyl groups and using benzaldehyde to protect NH_2 groups .在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句