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original ground | |||
existing ground; natural ground |
原 地面 : 33 phrases in 10 subjects |
Desert science | 1 |
Earth sciences | 2 |
Economy | 1 |
Engineering geology | 1 |
Finances | 1 |
Geology | 1 |
Hydroelectric power stations | 2 |
Mining | 1 |
Oil / petroleum | 2 |
Technology | 21 |