The forebody design a key issue for hypersonic airbreathing vehicle.前体设计是吸气式高超声速飞行器设计的关键之一.It would reach hypersonic speeds -- five times the speed of sound.也就是说,要使飞机达到特超音速—即音速的五倍.hypersonic aerodynamics高超音速空气动力学rarefied...
Click on this icon to align or justify text.点击这个图标使文本排齐。Click on the square icon to maximize the window.点击方框，把窗口最大化。A tsar was a living icon, invested with deep historical and religious significance.沙皇曾是活着的圣像,具有深远的历史和宗教意...
该手术是在全身麻醉情况下实施的。The operation is carried out under a general anaesthetic.酒精是一种能麻醉大脑的烈性药物。Alcohol is a potent drug that anaesthetizes the brain.这种强效药剂被用来麻醉手术病人。This powerful drug is used to tranquilize patients undergoing...
Cattle should be killed cleanly and humanely.牛应该被干净利落地无痛屠宰。Manufacturers are working with new fuels to find one that burns more cleanly than petrol.制造商们正在研制新型燃料，以找到一种比汽油更清洁的燃料。...wax strips which remove hairs cleanly fro...
Medical authorities were baffled, both as to its causes and its virulence.医疗当局对其病因及有多致命都还不甚了解。How can faculty improve their teaching so as to encourage creativity?教师们如何才能改进教学以激发创造性呢？He is in no doubt as to what is needed...