| |||
underground resource | |||
underground resources | |||
subsoil asset | |||
hidden resources |
地下 资 源 : 50 phrases in 8 subjects |
Desert science | 1 |
Earth sciences | 2 |
Engineering geology | 15 |
General | 2 |
Hydroelectric power stations | 4 |
Hydrology | 3 |
Technology | 20 |
Water resources | 3 |