| |||
| 文献系统 | |||
|
documentation system : 38 phrases in 9 subjects |
| Aviation | 13 |
| Earth sciences | 4 |
| Electronics | 12 |
| Information technology | 1 |
| Name of organization | 3 |
| Nautical | 1 |
| Space | 1 |
| Telecommunications | 2 |
| United Nations | 1 |
| |||
| 文献系统 | |||
|
documentation system : 38 phrases in 9 subjects |
| Aviation | 13 |
| Earth sciences | 4 |
| Electronics | 12 |
| Information technology | 1 |
| Name of organization | 3 |
| Nautical | 1 |
| Space | 1 |
| Telecommunications | 2 |
| United Nations | 1 |