 |
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| stripping | |||
| open-pit mining | |||
| opening work | |||
| opencast mining; quarrying | |||
| open-work | |||
| open pit mining; the opencast mining | |||
| opencast mining Extracting metal ores and minerals that lie near the surface by removing the overlying material and breaking and loading the ore (通过移去上层物料、爆破和装载矿石，以近地表方式提取金属矿石和矿产品。) | |||
| belt in open pits; open casting; opencasting | |||
| opencut mining | |||
| strip mining; open-pit ming; stripmining | |||
| barrow excavation | |||
| open work | |||
| strip; open-cut mining; surface mining | |||
| barrow excavation (作业); opencast work; opencast working; open cut mining (法); open mining; openwork | |||
| |||
| excavate; open work | |||
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| stripmining | |||
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| strip | |||
| 露天开采: 60 phrases in 7 subjects |
| Economy | 3 |
| Electronics | 2 |
| Engineering geology | 2 |
| Explosives and Explosive Ordnance Disposal | 18 |
| General | 5 |
| Management | 4 |
| Technology | 26 |