 |
| |||
| total space | |||
| 综合空间: 24 phrases in 9 subjects |
| Air defense | 1 |
| Aviation | 5 |
| Business | 1 |
| Earth sciences | 1 |
| Electronics | 1 |
| Oil / petroleum | 1 |
| Space | 9 |
| Technology | 4 |
| United States | 1 |
|
| |||
| total space | |||
| 综合空间: 24 phrases in 9 subjects |
| Air defense | 1 |
| Aviation | 5 |
| Business | 1 |
| Earth sciences | 1 |
| Electronics | 1 |
| Oil / petroleum | 1 |
| Space | 9 |
| Technology | 4 |
| United States | 1 |