 |
| |||
| standards and procedures | |||
| 标准 和程序: 12 phrases in 5 subjects |
| Aviation | 8 |
| Name of organization | 1 |
| Project management | 1 |
| Technology | 1 |
| United Nations | 1 |
|
| |||
| standards and procedures | |||
| 标准 和程序: 12 phrases in 5 subjects |
| Aviation | 8 |
| Name of organization | 1 |
| Project management | 1 |
| Technology | 1 |
| United Nations | 1 |