| |||
open-pit mining; opencast mining | |||
open-cut mining | |||
opencast; opencut | |||
open cut mining; open cut working | |||
open mining | |||
strip mining; surface mining | |||
open pit mining | |||
| |||
opencut mining | |||
| |||
open-cut mining |
露 天 采矿 : 42 phrases in 10 subjects |
Earth sciences | 2 |
Economy | 1 |
Electronics | 1 |
Explosives and Explosive Ordnance Disposal | 3 |
General | 3 |
Management | 2 |
Metallurgy | 2 |
Mining | 1 |
Technology | 26 |
Water resources | 1 |