| 1. | The spacecraft burned up when it re-entered the earth 's atmosphere .
宇宙飞船重新进入地球大气层时烧毁了。 |
| 2. | The spaceship burned up as it entered the earth ' s atmosphere
宇宙飞船进入地球大气层时被烧毁。 |
| 3. | Generally speaking ， meteors and meteor particles travel together in swarms like bees ， with the exception of the loners ， and travel in any direction they choose
大多数流星在进入地球大气层时就已经被烧化了，除了一些特别大的流星，它们穿过大气层，被地心引力拖了下来。 |
| 4. | Most meteors do burn up when they enter the earth ' s atmosphere , with the exception of the large meteors , which are dragged through the earth ' s atmosphere by the earth ' s gravitational pull
大多数流星在进入地球大气层时就已经被烧化了，除了一些特别大的流星，它们穿过大气层，被地心引力拖了下来。 |
| 5. | But the capsule ' s parachutes failed to open , and the spacecraft tumbled out of control and struck the ground at 193 miles per hour six minutes after entering earth ' s atmosphere
但是由于返回舱的降落伞未能打开，返回舱失去控制，在空中翻转。在进入地球大气层6分钟后，以每小时193英里的速度一头栽到沙漠中。 |
| 6. | A similar wing hit during the launch of the columbia in february 2003 caused the disaster when it burned up upon reentry into the earth ' s atmosphere , killing all seven astronauts
哥伦比亚号航天飞机2003年2月发射时也发生了机翼被击中的类似事件，结果哥伦比亚号在回程中进入地球大气层的时候燃烧起火，机上7名宇航员全部遇难。 |
| 7. | Reentering the earth ' s atmosphere at these enormous speeds results in violent collision of air molecules with the heat shield of the space craft which heats up several thousands of degrees and burns away partially
重新以这种巨大的速度进入地球大气层，引起空气的分子与宇宙飞船上的隔热板相撞从而使隔热板热到几千度并部分烧毁。 |
| 8. | When a meteoroid with a speed of tens of kilometers per second hits the earth s atmosphere , the friction with air will heat up the meteoroid . the high temperature will cause the surrounding atmosphere to glow , creating a bright streak of light called a
当流星体以每秒数十公里的速度进入地球大气层，由于与空气摩擦而产生高热，高温令流星体四周空气发光，形成一条划破天际的光迹，我们称之为 |
| 9. | When cosmic rays enter the atmosphere , they interact with nitrogen , oxygen and other atoms in the upper atmosphere and produce a large assortment of secondary particles , including radionuclides such as tritium and carbon - 14 , neutrons , protons , electrons , mu
宇宙射线进入地球大气层后，会与大气高层的氮氧等原子核发生反应，产生氚碳- 14等放射性核素及中子质子电子介子介子等次级粒子。 |
| 10. | When cosmic rays enter the atmosphere , they interact with nitrogen , oxygen and other atoms in the upper atmosphere and produce a large assortment of secondary particles , including radionuclides ( such as tritium and carbon - 14 ) , neutrons , protons , electrons , mu
宇宙射线进入地球大气层后，会与大气高层的氮、氧等原子核发生反应，产生氚、碳- 14等放射性核素及中子、质子、电子、介子、介子等次级粒子。 |
