1. strip mining：grant a license 颁发许可证 | strip mining 露天采矿 | offshore oil drilling 近海石油钻探
2. open cut mining, open pit mining, surface mining：地下采矿underground mining | 露天采矿open cut mining, open pit mining, surface mining | 采矿工程mining engineering
3. opencast mining：open woodland 开阔树林 | opencast mining 露天采矿 | open-cup test 开杯试验
4. surface mining：surface lining 贴面材料 | surface mining 露天采矿 | surface spread of flame classification 火焰表面传播分类