methyl-甲基-methyln.甲基；木精methylcoclaurine甲基(衡州)乌药碱methyl mandelate苯乙醇酸甲酯methylcassythine甲基无根藤质methylfluorenone甲基芴酮methylatheroline甲基阿塞洛林methylpentadienen.甲基戊二烯methyl sulfonate[医] 磺酸甲酯methylnicotinate烟酸甲酯methyl guanidine甲胍methylpiperazine甲基哌嗪