Cyclization occurs readily with dilute alkali.遇到稀碱就容易环化.Menthol was obtained from lemon eucalyptus oil via cyclization and catalytic hydrogenation.以柠檬桉叶油为主要原料经环化、催化氢化二步反应得到薄荷醇.METHODS Cilnidipine was synthesized from cin...
Mr. Wang Yubao is a well - known Tianjin Ditty singer.王毓宝先生是著名的天津时调表演艺术家.Used to tune folk songs, ditty, singing mainly in small places.所用曲调以民歌 、 小曲 、 地方小唱腔为主.The Chinese rice wine's brewing includes ditty fermentat...
他们看见15名警察骑着摩托车排成V字形前行。They saw a squadron of fifteen motorcycle policemen driving in V-formation.他们打着象征胜利的V字形手势。They were waving V-signs for victory.道路呈U字形蜿蜒曲折。The roads twist round hairpin bends....
He nodded with a peculiarly male satisfaction at her capitulation.对她的屈服,他以一种男人特有的满足感点了点头.She nodded sympathetically.她同情地点了点头。She nodded with a sob.她啜泣着点了点头.The lawyer nodded a stiff greeting.那个律师不自然地点头示意。She nodded her h...
“ 你给你闺女找了个婆家? ”" Did you find a suitor for your daughter? "母性出现了, 她做闺女日子里的那种天真心情又复活了.Motherhood dawned, the old simplicity of her maiden days came back to her.有这么好的闺女,真是你的福分.You are really fortunate to have such a good d...