萘硫脲naphthylthiourea: 萘硫脲a-ning wang: 王家宁a-naphthyl-acetate esterase: 乙酸-1-萘酯酯酶a-nor-steroidal compounds: a环失碳甾体化合物a-n signal: 讯号下载手机词典可随时随地查词查翻译