|
soil sample : 17 phrases in 5 subjects |
| Construction | 4 |
| Industry | 1 |
| Mining | 3 |
| Natural resourses and wildlife conservation | 8 |
| Technology | 1 |
|
soil sample : 17 phrases in 5 subjects |
| Construction | 4 |
| Industry | 1 |
| Mining | 3 |
| Natural resourses and wildlife conservation | 8 |
| Technology | 1 |