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| resource efficiency | |||
| 资源 效率: 15 phrases in 9 subjects |
| Animal husbandry | 1 |
| Business | 1 |
| China | 2 |
| Desert science | 2 |
| Ecology | 1 |
| Electronics | 1 |
| International Monetary Fund | 5 |
| Securities | 1 |
| United Nations | 1 |
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