 |
| |||
| position circle; setting circle | |||
| 定位圆: 14 phrases in 6 subjects |
| Air defense | 1 |
| Compressors | 1 |
| Construction | 1 |
| General | 1 |
| Space | 1 |
| Technology | 9 |
|
| |||
| position circle; setting circle | |||
| 定位圆: 14 phrases in 6 subjects |
| Air defense | 1 |
| Compressors | 1 |
| Construction | 1 |
| General | 1 |
| Space | 1 |
| Technology | 9 |