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special operations: 76 phrases in 17 subjects |
Air defense | 5 |
Aviation | 16 |
China | 5 |
Corporate governance | 2 |
Desert science | 1 |
Electronics | 14 |
General | 1 |
Hydroelectric power stations | 2 |
International Monetary Fund | 4 |
Name of organization | 3 |
Nautical | 2 |
Oil and gas technology | 1 |
Rail transport | 1 |
Space | 8 |
Technology | 3 |
United Nations | 2 |
United States | 6 |