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| A层; 淋溶层｛土壤｝ | |||
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horizon A : 26 phrases in 11 subjects |
| Agriculture | 2 |
| Architecture | 1 |
| Business | 1 |
| Desert science | 4 |
| Drilling | 1 |
| Earth sciences | 1 |
| Ecology | 1 |
| Economy | 1 |
| Engineering geology | 5 |
| Soil science | 4 |
| Technology | 5 |
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