 |
|
optically-tracked : 13 phrases in 7 subjects |
| Air defense | 1 |
| Astronautics | 1 |
| Military | 4 |
| Military lingo | 1 |
| Nuclear and fusion power | 1 |
| Space | 4 |
| Technology | 1 |
|
|
optically-tracked : 13 phrases in 7 subjects |
| Air defense | 1 |
| Astronautics | 1 |
| Military | 4 |
| Military lingo | 1 |
| Nuclear and fusion power | 1 |
| Space | 4 |
| Technology | 1 |