The magician vanished in a puff of smoke.魔术师在一股烟雾中突然不见了。With a wave of his hand, the magician made the rabbit vanish.魔术师手一挥兔子便不见了.The magician deceived us by making us think the box was empty.魔术师让我们以为箱子是空的,让我们上当....
商业上采用的以镍作催化剂的氢化有两种.Commercially two main types of hydrogenations are carried out with Nickel catalyst.抑制剂和促进剂能影响氢化速率.Inhibitors and promoters may affect the rate of oxxidution.用六氢化邻苯二酸酐加入到邻苯二酸酐中,可使其放热反应减慢.Exothermic reac...
The passengers went through immigration control and collected their baggage.旅客通过入境检查后领取了自己的行李。Normally, the transportation system in Paris carries 950,000 passengers a day.正常情况下，巴黎的交通系统每天运送95万乘客。All of the passengers sta...
细胞的这种向里推进标志着原肠胚形成的开始.This pushing - in of cells marks the start of gastrulation.另一派认为它们是从微小动物的 “ 种子 ” 或 “ 胚 ” 形成的.Others belived that they were formed from the'seeds " or " germs " of these animalcules.桑椹胚形成于'&...