Steep coal seam mining
英
美
- 急倾斜
双语例句
- Resuing is used for mining the steeply dipping narrow-vein in the Shangzhou Gold Mine of Shaanxi,has made great success and excellent economic effect.
陕西商州市金矿采用削壁充填采矿法开采急倾斜薄矿脉，获得成功，取得良好的经济效益。
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