| |||
| 管理数据处理系统 | |||
|
management data processing system : 4 phrases in 4 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Electronics | 1 |
| United States | 1 |
| |||
| 管理数据处理系统 | |||
|
management data processing system : 4 phrases in 4 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Electronics | 1 |
| United States | 1 |