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| separate; soil fraction | |||
| 土粒组: 18 phrases in 9 subjects |
| Agriculture | 2 |
| Bridge construction | 4 |
| Desert science | 1 |
| Ecology | 1 |
| Engineering geology | 3 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Rail transport | 1 |
| Technology | 4 |
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