废气 : 793 phrases in 45 subjects |
Agriculture | 5 |
Animal husbandry | 3 |
Architecture | 1 |
Armored vehicles | 1 |
Automobiles | 105 |
Aviation | 8 |
Bioenergy | 1 |
Business | 3 |
Chemistry | 7 |
China | 1 |
Commerce | 1 |
Consulting | 1 |
Corporate governance | 1 |
Drilling | 6 |
Earth sciences | 1 |
Ecology | 56 |
Electric machinery | 1 |
Electronics | 34 |
Energy industry | 1 |
Environment | 17 |
Exhibitions | 1 |
Fishery fishing industry | 2 |
General | 16 |
Hydrology | 1 |
Laboratory equipment | 1 |
Management | 3 |
Mechanics | 1 |
Metallurgy | 126 |
Nautical | 34 |
Nuclear and fusion power | 6 |
Oil / petroleum | 17 |
Oil processing plants | 8 |
Plastics | 3 |
Racing and motorsport | 2 |
Rail transport | 6 |
Refrigeration | 7 |
Shipbuilding | 16 |
Space | 11 |
Steel production | 2 |
Technology | 257 |
Textile industry | 4 |
Transport | 1 |
United Nations | 2 |
Water resources | 3 |
Wind Energy | 9 |