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| outer atmosphere (层); upper atmosphere (层) | |||
| light air; upper atmosphere | |||
| 高空 大 气: 26 phrases in 10 subjects |
| Aviation | 3 |
| Desert science | 1 |
| Earth sciences | 2 |
| Electronics | 4 |
| General | 1 |
| Remote sensing | 1 |
| Space | 9 |
| Technology | 2 |
| United States | 1 |
| Wind Energy | 2 |
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