 |
puhtaan hiilen | teknologia
| teknologia | |
| econ. | tehnologie |
| puhtaan: 7 phrases in 4 subjects |
| Chemistry | 1 |
| Ecology | 1 |
| Economy | 1 |
| Environment | 4 |
|
| teknologia | |
| econ. | tehnologie |
| puhtaan: 7 phrases in 4 subjects |
| Chemistry | 1 |
| Ecology | 1 |
| Economy | 1 |
| Environment | 4 |