| |||
| 命令操作 | |||
|
command operation : 23 phrases in 7 subjects |
| Air defense | 4 |
| Aviation | 1 |
| Communications | 1 |
| Electronics | 1 |
| Space | 9 |
| Technology | 3 |
| United States | 4 |
| |||
| 命令操作 | |||
|
command operation : 23 phrases in 7 subjects |
| Air defense | 4 |
| Aviation | 1 |
| Communications | 1 |
| Electronics | 1 |
| Space | 9 |
| Technology | 3 |
| United States | 4 |