返回大气层

他返回大气层，并使火星号航天器减速。

He re-entered the atmosphere and slowed the Mercury spacecraft .

各位请注意：我们的卫星马上就要返回大气层了。

Attention , everyone ! Our satellite is coming back into the atmosphere soon .

如果不采取措施，这种弹头返回大气层时会像流星一样被加热。

Left to itself , this warhead would have heated up like a meteor when it fell back into the atmosphere .

2003年2月1日，哥伦比亚号航天飞机在返回大气层时爆炸，机上所有7名人员全部遇难。

On Feb. 1 , 2003 , the space shuttle Columbia broke up during re-entry , killing all seven crew members .

本文主要研究两种特定的大气现象，即峨眉宝光和航天器返回大气层过程中呈现的奇特现象。

We will study the simulation of two particular atmospheric phenomena , Emei Glory and the process of spacecraft 's reentry through the aerosphere respectively .

损失虽小，击穿脆弱的耐热瓦片保护航天飞机在返回大气层，穿越大气层降落。

The damage , though small , penetrated through the fragile heat-resistant tile that protects the shuttle during its fiery re-entry through the atmosphere for landing .

本文采用控制容积法，光线踪迹法结合谱带模型，研究航天飞机返回大气层时舷窗硅玻璃的非稳态复合换热。

In this paper , the transient combined heat transfer in the silicon glass porthole of space shuttle is studied by control volume method , ray tracing method and spectral band model .

Q.在宇宙飞船返回再入大气层时，如果用一个像“好奇号”降落火星表面时所用的“天空起重机”，把飞船的速度降到每小时只有几千米，那是不是就可以不用热防护罩了？

Q. What if a spacecraft slowed down onreentry to just a few miles per hour using rocket boosters like the Mars skycrane ? Would it negate the need for a heat shield ?

摩擦力能影响航天器返回地球大气层的速度。

The force of friction affects the speed at which spacecraft can re-enter the earth 's atmosphere .

之后这些咖啡豆将被烘烤，飞船产生的热量将在20分钟后返回地球大气层。

The beans would then be roasted and the heat generated by the crafts 20 minute re-entry into earth 's atmosphere .

然后希望这些在过去超过五十年的人类空间探索中形成的混乱，能最终返回地球大气层，并在有机会撞击地球前无害的烧毁。

The hope was that the clutter -- built up after more than five decades of human space exploration -- would eventually enter the Earth 's atmosphere and burn up harmlessly before it had a chance to crash into the planet .