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| 大气折射率 | |||
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air-index : 25 phrases in 12 subjects |
| Aviation | 1 |
| Desert science | 1 |
| Earth sciences | 3 |
| Ecology | 2 |
| Electronics | 1 |
| Hydroelectric power stations | 1 |
| Life sciences | 1 |
| Rail transport | 1 |
| Refrigeration | 1 |
| Space | 2 |
| Technology | 9 |
| Wind Energy | 2 |
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