Helium is a very light gas.氦是一种非常轻的气体。Helium is a gas used in balloons.氦是一种用于气球的气体.Unlike helium - 4, it cannot be produced by radioactive decay.与氦 - 4不同之处是, 氦-3不能由放射性衰变产生....
Helium is a very light gas.氦是一种非常轻的气体。A synthetic element produced in trace quantities by helium isotope bombardment of curium.锎一种合成元素,由氦同位素轰击锔可得到微量的这种元素.helium balloons for the children’s party儿童聚会用的氦气球Helium is a gas u...
As a result, during the boom, British banks were allowed to bloat.其结果是, 英国各家银行得以在繁荣时期不断膨胀.That gum bloat came on the side of big tooth, good ache, how should I do?大板牙旁边那个牙龈肿起来了, 好疼啊, 我应该怎么办?Just two capsules a day help m...
The developed electronic - actuator was used to realize its mechanization.应用电子操动系统来实现其机械化工程,并给出了计算模型.Performance of control system can be influenced by actuator.执行机构对调节系统的性能有很大影响.A new torque identification strategy of v...
They proclaimed to be eternal postulates of reason and justice.他们宣称这些原则是理性和正义的永恒的要求.The school building programme postulates an increase in educational investment.修建校舍的计画是在增加教育经费的前提下拟定的.Enclid next lays down five postula...
He mobilized public opinion all over the world against hydrogen-bomb tests.他动员全世界的舆论反对氢弹试验。In London, where I grew up, we were surrounded by bomb sites.在我生长的伦敦，四周全是轰炸后的断壁残垣。The city's bomb shelters were being prepar...