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视 域: 81 phrases in 22 subjects |
Advertising | 5 |
Agriculture | 1 |
Air defense | 6 |
Automobiles | 2 |
Aviation | 11 |
Communications | 1 |
Corporate governance | 1 |
Earth sciences | 12 |
Ecology | 3 |
Electronics | 4 |
Exhibitions | 1 |
Forestry | 1 |
General | 3 |
Hydroelectric power stations | 2 |
Navigation | 1 |
Oil / petroleum | 2 |
Project management | 1 |
Reproductive biology | 1 |
Space | 9 |
Technology | 10 |
United Nations | 1 |
United States | 3 |