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natural earth; natural soil |
天然土 : 61 phrases in 12 subjects |
Automobiles | 1 |
Construction | 1 |
Desert science | 1 |
Ecology | 1 |
Economy | 1 |
Engineering geology | 2 |
General | 2 |
Hydroelectric power stations | 4 |
Metallurgy | 1 |
Oil / petroleum | 3 |
Technology | 42 |
Textile industry | 2 |