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...
Hypersonic wind tunnels operating at very low densities were developed starting in about 1960.低密度超音速风洞大约开始发展于1960年.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.FEM FCT is used ...
张力细丝集中成束,并附着于桥粒上.The tonofilaments condense into bundles and become attached to desmosomes.桥粒间的细胞质皱缩.The cytoplasm between the desmosomal attachments shrinks.少数细胞中可见带部分关闭腔的ICDS(ICDSwith aclosed Iumen) 和自体桥粒(Autodesmosome...
电子显微学已经革新了对晶体不完整性的研究.Electron microscopy has revolutionized the study of crystal imperfections.粗的晶体不完整性,如孪生体可用肉眼看出.Gross crystalline imperfections like twinning are apparent to the unaided eye.断裂力学虽不是评定结构完整性的唯一标准, 但它起着中心...
Geologists have studied the way that heat flows from the earth.地质学家曾研究过热量如何散出地球。The current flows in little bursts.水流小股小股地涌出来。The blood flows from the capillaries back into the veins.血从毛细血管流回静脉....
It was in these hours of the late afternoon that Tom Mulligan felt most melancholy.傍晚这几个小时里，汤姆·马利根最为抑郁。My name is absurd too: Malachi Mulligan , two dactyls.我的姓名也荒唐, 玛拉基·穆利根, 两个扬抑抑格.Buck Mulligan frowned at the lather on...
事谐之后,即可动身.We shall set out immediately once the matter is settled.那首歌里词与曲配合合谐,产生了非同凡响的效果.The marriage of words and melody in that song was unusually effective.事情并不完全象他过去想的那样音和律谐.Events did not rhyme quite as he had thoug...