粗 粒的 : 41 phrases in 12 subjects |
Animal husbandry | 3 |
Architecture | 4 |
Bridge construction | 1 |
Cryptography | 1 |
Desert science | 1 |
Drilling | 1 |
Earth sciences | 2 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 7 |
Geology | 2 |
Metallurgy | 3 |
Technology | 15 |