| |||
| 初始导航、制导与控制系统 | |||
| 基本导航、制导与控制系统 | |||
|
primary navigation , guidance and control system : 3 phrases in 2 subjects |
| Aviation | 1 |
| Electronics | 2 |
| |||
| 初始导航、制导与控制系统 | |||
| 基本导航、制导与控制系统 | |||
|
primary navigation , guidance and control system : 3 phrases in 2 subjects |
| Aviation | 1 |
| Electronics | 2 |