 |
| |||
| 电子资料库 | |||
|
electronic database : 8 phrases in 7 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Electronics | 1 |
| Project management | 1 |
| Surveying | 1 |
| Textile industry | 1 |
| United Nations | 1 |
|
| |||
| 电子资料库 | |||
|
electronic database : 8 phrases in 7 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Electronics | 1 |
| Project management | 1 |
| Surveying | 1 |
| Textile industry | 1 |
| United Nations | 1 |