 |
| |||
| blue gas; butane-enriched water gas; water gas | |||
| |||
| blue gas (водяной или светильный газ) | |||
| голубой газ: 6 phrases in 5 subjects |
| Chemistry | 1 |
| Ecology | 1 |
| Geophysics | 2 |
| Makarov | 1 |
| Oil / petroleum | 1 |
|
| |||
| blue gas; butane-enriched water gas; water gas | |||
| |||
| blue gas (водяной или светильный газ) | |||
| голубой газ: 6 phrases in 5 subjects |
| Chemistry | 1 |
| Ecology | 1 |
| Geophysics | 2 |
| Makarov | 1 |
| Oil / petroleum | 1 |