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- The decrease in orbital altitude of an artificial satellite as a result of conditions such as atmospheric drag. 能量消减人造卫星由于大气阻力等的作用结果，在轨道高度上能量消减
- The design,selection and impact factors analysis of important system design parameters,including satellite orbit altitude,working system and frequency,power and aperture,PRF and waveform are studied. 讨论了天基雷达系统用于运动目标探测设计的相关问题,并对卫星轨道高度、工作体制、雷达工作波段、功率孔径积、雷达脉冲重复频率和波形等重要参数的设计、选择、影响因素进行了分析。
- We are flying at an altitude of 20000 feet. 我们的飞行高度是20000英尺。
- The spacecraft is in orbit around the moon. 该航天器在绕月球轨道运行。
- The airliner flew at an altitude of 20000ft. 客机在两万英尺的高度飞行。
- At this altitude you often get strong winds. 在这一纬度地区，经常有大风。
- The plane flew at an altitude of30000 feet. 飞机在三万英尺的高空飞行。
- The space shuttle will orbit a weather satellite. 太空梭将把一个气象卫星送入运行轨道。
- The launch vehicle lifts the satellite into orbit. 太空火箭将人造卫星送入运行轨道。
- Something of circular form; a circle or an orbit. 圆形物体圆形物体; 圆圈或环形轨道
- The orbit period depends on the altitude of the satellite. 卫星的轨道周期取决于其高度。
- The spacecraft is in orbit (ie moving in orbit) round the moon. 该航天器在绕月球轨道上飞行。
- Some people develop altitude sickness when climbing high mountains. 有些人在爬高山时会发生高山反应。
- Marketing does not come within the orbit of his department. 市场推销业务不归他这一部门管。
- The pilot blacked out for a moment upon reaching such a high altitude. 飞机上升到这样高度时，飞行员昏厥了片刻时间。
- The plane was then flying at an altitude of 8000 feet. 当时飞机在八千英尺的高度飞行。
- The satellite was launched into orbit around the moon. 卫星被发射进入绕月球运行的轨道。
- Regardless of whether the projectile was a missile or satellite that failed to reach orbital altitudes, had it been equipped with a nuclear warhead, it would have been a de facto ICBM. 不论这是一个飞弹还是一个没有到达轨道高度的卫星，也不论它是否装配了核弹头，这都说明北韩拥有了洲际导弹的能力。
- The two spacecraft will link up (with each other) in orbit. 两艘宇宙飞船将於轨道上(互相)连接。
- By now, putting satellites in orbit is old hat to space scientists. 现在，对航天科学家来说，把卫星送入轨道已不是一桩新鲜事了。
