破土 : 111 phrases in 18 subjects |
Agriculture | 6 |
Aviation | 2 |
Bridge construction | 1 |
Business | 1 |
Construction | 1 |
Desert science | 3 |
Earth sciences | 1 |
Ecology | 1 |
Electronics | 2 |
Engineering geology | 5 |
Explosives and Explosive Ordnance Disposal | 14 |
General | 4 |
Hydroelectric power stations | 2 |
Metallurgy | 2 |
Soil science | 2 |
Space | 1 |
Technology | 62 |
Wind Energy | 1 |