 |
| |||
| Пенопласт (Serge Ragachewski) | |||
| polysterene: 8 phrases in 8 subjects |
| Building materials | 1 |
| Chemistry | 1 |
| Construction | 1 |
| Ecology | 1 |
| Military | 1 |
| Mining | 1 |
| Polymers | 1 |
| Winemaking | 1 |
|
| |||
| Пенопласт (Serge Ragachewski) | |||
| polysterene: 8 phrases in 8 subjects |
| Building materials | 1 |
| Chemistry | 1 |
| Construction | 1 |
| Ecology | 1 |
| Military | 1 |
| Mining | 1 |
| Polymers | 1 |
| Winemaking | 1 |