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