 |
|
pit-bottom : 40 phrases in 10 subjects |
| Construction | 11 |
| Fish farming pisciculture | 1 |
| Geology | 1 |
| Industry | 1 |
| Mining | 19 |
| Natural resourses and wildlife conservation | 1 |
| Nuclear and fusion power | 1 |
| Roll stock | 2 |
| Technology | 2 |
| Thermal engineering | 1 |
|
|
pit-bottom : 40 phrases in 10 subjects |
| Construction | 11 |
| Fish farming pisciculture | 1 |
| Geology | 1 |
| Industry | 1 |
| Mining | 19 |
| Natural resourses and wildlife conservation | 1 |
| Nuclear and fusion power | 1 |
| Roll stock | 2 |
| Technology | 2 |
| Thermal engineering | 1 |