您要查找的是不是：
- back ground (即底影)背景
- burn ... to the ground把 ... 烧成焦土
- ground roller (水流的)底部旋滚
- 采矿是一种对身体有害的工作。Mining is an unhealthy job.
- low to the ground (体型)低身广躯
- 钻井机一种在采矿中用来挖掘矿井时在石头上打孔的工具A rock-boring tool used in mining for sinking shafts.
- polygonal ground (网纹土)多边形土
- 一爿采矿公司a mining company
- 卧室是"世贸废墟(Ground Zero)"，因为太脏太乱；Their bedrooms are "ground zero. " Translation? A total mess.
- 表层采矿surface mining
- cutting at ground level (傍地斩)低斩
- 霸占土地(或采矿权)to jump a claim
- ground clearance (飞机起落轮中心的)离地距离
- (采矿)钻头超速bit overfeed
- DRB显示“short TO GROUND（对地短路）”吗?DOES THE DRB READ "SHORT TO GROUND"?
- 海底采矿技术undersea mining technology
- 卧室是"世贸废墟（Ground zero）"，因为太脏太乱；Their bedrooms are "ground zero. " Translation? A total mess.
- 薄矿脉采矿法narrow vein mining method
- 将earth、 ground、 floor、 soil这几个词作一比较.Compare earth, ground, floor and soil.
- 禁止将探矿权、采矿权倒卖牟利。Profiteering in exploration right or mining right shall be prohibited.
