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- The first-stage vehicle is used to launch the rocket and is then jettisoned in the upper atmosphere. 第一级运载火箭是用来发射火箭的,进入高层大气后即抛掉。
- Once in the upper atmosphere,CFC reacts with ozone to destroy it. 氯氟化碳一旦进人上层大气，就会与臭氧发生反应，从而破坏臭氧层。
- Once in the upper atmosphere, CFC's react with ozone to destroy it. 氯氟化碳一旦进人上层大气，就会与臭氧发生反应，从而破坏臭氧层。
- The study of the upper atmosphere, especially of regions of ionized gas. 高层大气物理学对有关高层大气，特别是离子化大气层的研究
- Quickly fading ones suggest a dry upper atmosphere and fair weather. 迅速消逝的轨迹表明上层大气层干燥和晴朗的天气。
- Particle concentrations in the upper atmosphere drop regularly as the altitude rises. 在高层大气中粒子浓度随高度的增加而有规律地下降。
- Scientists believe that tiny ice crystals of nitric acid in Antarctica's upper atmosphere are directly involved. 科学家认为，南极上部大气圈内微小的硝酸冰晶也直接参与其中。
- Scientists fear that the continued depletion of the ozone layer in the upper atmosphere will thus cause widespread health problems. 科学家担心，上部大气圈臭氧层的继续损坏将会引起普遍的健康问题。
- Ozone occurs naturally in the upper atmosphere and helps to mop up ultraviolet radiation. 臭氧自然发生在上层大气层，帮助抹去紫外线幅射。
- Capable of sustained atmospheric flight by transforming into"Wave Rider"mode. 它能转换成“光波骑士”模式,从而实现可持续的大气层飞行。
- China started to explore the upper atmosphere using rockets and balloons in the early 1960s. 中国在二十世纪六十年代初期开始利用探空火箭、探空气球开展了高层大气探测。
- A low - or middle - latitude, more or less steady, faint photochemical luminescence in the upper atmosphere. 气辉大气层上部位于低纬或中纬的相对稳定的微弱光化冷光
- Reactions between oxygen and ultraviolet radiation from the sun create a layer of ozone throughout Earth's stratosphere (upper atmosphere). 太阳辐射紫外线和氧反应在整个地球平流层(上部大气圈)内产生一个臭氧层。
- In the upper atmosphere, ozone shields the earth from the harmful ultraviolet radiation. 臭氧在大气层的作用是阻挡太阳释放出来的有害紫外线。
- A machine or device,such as an airplane,a helicopter,a glider,or a dirigible,that is capable of atmospheric flight. 飞机;航空器能够在空中飞行的机器或装置，如飞机、直升机、滑翔机或飞船
- Sky: The expanse of air over any given point on Earth; the upper atmosphere as seen from Earth's surface. 天,天空:在地球上给定地点上方空气的宽阔区域;大气层上部,如从地球表面看上去。
- Etkin, B., Dynamics of Atmospheric Flight, John Wiley and Sons, New York, USA, pp. 166-188 (1970). 书籍：赵荣澄、黄孝平，程序控制学，盐巴出版社，台北，第35-48页(1984)。
- The puffy trails cool the upper atmosphere by reflecting sunlight away and warm the lower atmosphere by trapping outgoing heat. 膨大的凝结尾会把阳光反射出去，使上方的大气层冷却，又会阻挡下面散发上来的热，而使下方的大气层变得温暖。
- A low - or middle - latitude,more or less steady,faint photochemical luminescence in the upper atmosphere. 气辉大气层上部位于低纬或中纬的相对稳定的微弱光化冷光
- The science of gases in equilibrium and of the equilibrium of balloons or aircraft under changing atmospheric flight conditions. 空气静力学关于平衡状态下气体以及不断变化的大气飞行条件下的气球或航空器平衡状态的科学
