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| 灰 白质: 52 phrases in 13 subjects |
| Agriculture | 2 |
| Desert science | 1 |
| Drilling | 3 |
| Electronics | 1 |
| Engineering geology | 4 |
| General | 4 |
| Hydroelectric power stations | 1 |
| Industry | 1 |
| Oil / petroleum | 9 |
| Pharmacology | 4 |
| Soil science | 1 |
| Technology | 20 |
| United Nations | 1 |
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