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| genesis of soil | |||
| soil formation; pedogenesis; soil genesis | |||
| soil formation (作用) | |||
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土壤 形成 : 25 phrases in 7 subjects |
| Agriculture | 5 |
| Desert science | 2 |
| Earth sciences | 2 |
| Environment | 1 |
| Soil science | 3 |
| Technology | 10 |
| United Nations | 2 |
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