或许这个过程应正确地称为氟化.Perhaps the process should rightly be called fluoridation.异氰酸酯可由含氯的环(或非环)状分子氟化而得.The isocyanates can be obtained by the fluorination of nitrogenous cylic or acyclic molecules.在氟化过程中需要用一架 大功率 的电磁搅拌器.A heavy...
Acceleration is accompanied by a resonating growl from the gearbox.变速箱随着加速传来一阵轰鸣。Centrifugal machines are connected to the motor drive directly instead of through a gearbox.离心机不通过调速箱直接与电机驱动装置相连.We have to take the engine...
他们说，当前的征兵体系应当逐步废除。They said the present system of military conscription should be phased out.当前的形势与1990年截然不同。The current situation is very different to that in 1990.首席社论员也把当前的危机归咎于领导层软弱无力。The chief editorial writer also ...
DD was mumbling other things about BB when he heard a roar.DD正嘟嘟哝哝地说着其他关于BB的事情,突然,他听到一声吼叫.A while later, BB couldn't stand DD's silence any longer.过了一会儿, BB再也不能忍受DD的沉默了.DD starts making new friends in his class...
The music has a dreamy, elegiac quality.那音乐有一种梦幻般的哀伤。He recorded his emotion in elegiac lines of magnificent dignity.他把他的感情宣泄在凄惋而庄严的诗句里.He died at the end of this wistful and elegiac novel.在这本情意绵绵的哀歌式小说的末尾,他结束了一生....
总统有六名警卫员时时刻刻在左右保卫.The President always has six bodyguards in close attendance.警卫员把犯人捆起来,并在他们嘴里塞上布条.The guards tied up and gagged the prisoners.那个银行抢劫者拨出枪,残忍地杀了警卫员.The bank robber drew a gun and shot the guard in cold blo...