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dirt-bed | |||
sod | |||
stratum of humus | |||
humus layer | |||
humus stratum | |||
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vegetable layer |
腐殖层: 43 phrases in 10 subjects |
Agriculture | 10 |
Animal husbandry | 2 |
Desert science | 7 |
Earth sciences | 1 |
Ecology | 2 |
Engineering geology | 3 |
General | 1 |
Oil / petroleum | 2 |
Soil science | 5 |
Technology | 10 |