 |
| |||
| prismatic channel | |||
| призматический канал: 3 phrases in 3 subjects |
| Artillery | 1 |
| Hydraulic engineering | 1 |
| Weapons and gunsmithing | 1 |
|
| |||
| prismatic channel | |||
| призматический канал: 3 phrases in 3 subjects |
| Artillery | 1 |
| Hydraulic engineering | 1 |
| Weapons and gunsmithing | 1 |