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| 应力指数 | |||
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stress index : 23 phrases in 10 subjects |
| Animal husbandry | 1 |
| Aviation | 1 |
| Earth sciences | 7 |
| Electronics | 1 |
| Hydroelectric power stations | 1 |
| International Monetary Fund | 1 |
| Oil / petroleum | 1 |
| Refrigeration | 1 |
| Technology | 8 |
| Water resources | 1 |
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