同步卫星 : 143 phrases in 22 subjects |
Advertising | 1 |
Air defense | 4 |
Aviation | 6 |
Business | 2 |
Communications | 1 |
Earth sciences | 34 |
Ecology | 1 |
Electronics | 13 |
Engineering geology | 1 |
Environment | 1 |
General | 3 |
Information technology | 2 |
Latin | 1 |
Multimedia | 1 |
Remote sensing | 3 |
Shipbuilding | 1 |
Space | 32 |
Statistics | 1 |
Technology | 28 |
Telecommunications | 3 |
United States | 3 |
Wind Energy | 1 |