 |
wasserstoffreiches | Gas
| Gas | |
| coal. | gas,herunder naturgas |
| econ. | gas |
| Gasen | |
| earth.sc. chem. | gasdannelse |
| el. | gasudvikling |
| wasserstoffreiches: 3 phrases in 2 subjects |
| Chemistry | 2 |
| Metallurgy | 1 |