 |
| |||
| cost effectiveness; cost-effectiveness; cost-effectiveness ratio | |||
| 费效比: 21 phrases in 8 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Hydroelectric power stations | 1 |
| Space | 8 |
| Technology | 7 |
| Telecommunications | 1 |
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