Isopentyl lactate was synthesis from acid and isopentyl alcohol in the presence of ferric chloride hexahydrate.在六水三氯化铁存在下可以由乳酸和异戊醇合成乳酸异戊酯.Rather than politely lobbying politicians, Gay Dignity will be making its presence...
We had kept its presence hidden with a strategically placed chair.我们用一张摆放得很巧妙的椅子将它隐藏了起来。The presence of a star is already apparent in the early film.在早期影片中已经显露出了明星相。Nobody was allowed to eat in the Empress Dowager's...
I think there was deliberate concealment of relevant documents.我认为有人故意隐瞒相关文件。The criminals vainly sought concealment from the searchlight.罪犯们徒劳地躲闪着探照灯光。His concealment of his true motives was masterly.他隐瞒自己真实动机的手段十分高明。...
Restarting the engine, we motored downriver.我们重新启动马达，沿河而下。Enter your password so Setup can automatically logon after restarting.输入密码以便重新启动后安装程序能够自动登录.The separate restarting control for single low - voltage motor has wid...