动态 模 拟 : 78 phrases in 20 subjects |
Agriculture | 2 |
Automobiles | 2 |
Aviation | 9 |
Computers | 1 |
Earth sciences | 6 |
Electric machinery | 1 |
Electronics | 10 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 2 |
Horticulture | 3 |
Information technology | 1 |
Mining | 1 |
Oil / petroleum | 2 |
Rail transport | 1 |
Shipbuilding | 1 |
Space | 10 |
Technology | 20 |
Telecommunications | 3 |
Water resources | 1 |
Wind Energy | 1 |