 |
| glass pot: 14 phrases in 7 subjects |
| Construction | 1 |
| General | 1 |
| Geology | 1 |
| Road works | 1 |
| Silicate industry | 5 |
| Technology | 1 |
| Thermal engineering | 4 |
|
| glass pot: 14 phrases in 7 subjects |
| Construction | 1 |
| General | 1 |
| Geology | 1 |
| Road works | 1 |
| Silicate industry | 5 |
| Technology | 1 |
| Thermal engineering | 4 |