| |||
| 备件控制系统 | |||
| 后备［备用］控制系统; 备用控制系统 | |||
|
backup control system : 4 phrases in 4 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Space | 1 |
| Technology | 1 |
| |||
| 备件控制系统 | |||
| 后备［备用］控制系统; 备用控制系统 | |||
|
backup control system : 4 phrases in 4 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Space | 1 |
| Technology | 1 |