| |||
direction ratio; front-to-back ratio |
方向 比 : 24 phrases in 12 subjects |
Agriculture | 1 |
Air defense | 3 |
Cartography | 2 |
Economics | 1 |
Electronics | 4 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 1 |
Hydroelectric power stations | 1 |
Metallurgy | 2 |
Space | 1 |
Sports | 1 |
Technology | 6 |