1. the atmosphere and outer space considered as a whole. 
   大气与外层空间构成的整体。
2. The scope of mankind's activities has experienced expansion from land to ocean, from ocean to atmosphere, and from atmosphere to outer space. 
   人类的活动范围，经历了从陆地到海洋，从海洋到大气层，从大气层到外层空间的逐步拓展过程。
3. the outer region of the Earth's atmosphere; contains a high concentration of free electrons. 
   地球大气层的一个区域；包含了高度密集的自由电子。
4. the rate at which radiant solar energy is received at the outer layer of the earth's atmosphere. 
   大气层外层接收到的辐射太阳能速率。
5. A mass, as of dust, smoke, or steam, suspended in the atmosphere or in outer space. 
   烟云，烟尘灰尘、烟或蒸汽组成的一团，悬垂于大气或外部空间

查看更多例句 相关情景会话

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• 2. 外层大气
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• 3. 外气层
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• 4. 外氣層
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