Steep coal seam mining
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美
急倾斜
Steep coal seam mining的用法和样例:
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。
Steep coal seam mining的相关资料:
临近单词
steep
steepwater
目录
查词历史
英 汉