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控制 区 : 114 phrases in 13 subjects |
| Aviation | 3 |
| Construction | 1 |
| Ecology | 1 |
| Electronics | 19 |
| Energy industry | 1 |
| General | 68 |
| Military | 2 |
| Nautical | 1 |
| Oil and gas | 1 |
| Space | 1 |
| Technology | 14 |
| United Nations | 1 |
| Water resources | 1 |
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