gas: 193 phrases in 14 subjects |
Chemistry | 48 |
Construction | 1 |
Ecology | 1 |
Economy | 11 |
Energy industry | 20 |
Environment | 60 |
General | 17 |
Life sciences | 2 |
Mechanic engineering | 1 |
Natural sciences | 1 |
Obsolete / dated | 2 |
Physical sciences | 6 |
Politics | 1 |
Transport | 22 |