等 位 线 : 101 phrase in 20 subjects |
Agriculture | 2 |
Air defense | 1 |
Astronautics | 1 |
Aviation | 4 |
Desert science | 2 |
Earth sciences | 1 |
Electric machinery | 2 |
Electronics | 7 |
Engineering geology | 17 |
Explosives and Explosive Ordnance Disposal | 2 |
General | 3 |
Hydraulics | 1 |
Hydroelectric power stations | 2 |
Oil / petroleum | 7 |
Remote sensing | 1 |
Space | 8 |
Technology | 36 |
Transport | 1 |
United Nations | 2 |
Water resources | 1 |