生产层 : 75 phrases in 17 subjects |
Animal husbandry | 1 |
Biotechnology | 1 |
Business | 5 |
Chemistry | 1 |
Drilling | 10 |
Earth sciences | 1 |
Economy | 2 |
Electronics | 1 |
Engineering geology | 3 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 1 |
Metallurgy | 6 |
Oil / petroleum | 23 |
Plastics | 1 |
Soil science | 1 |
Technology | 16 |
United Nations | 1 |