coal face是什么意思

用法例句

Application of flooding forecasting system to coal mining under sea;

水情监测预警系统在海下采煤中的应用

Research on safety mining boundary of coal mining above limestone with pressurized water in Gaokeng Mine Field;

高坑井田承压水上采煤安全开采边界的研究

Affection analysis of coal mining drainage for regional water resources: taking coal mining area of upper reaches of Yangwu river valley as example;

采煤排水对区域水资源的影响——以山西阳武河流域上游煤矿区为例

1 opencut coal seam in Huolinhe Coal Mine are complicated,coal mining needs to choose and peeling not only needs to punching explode but also to broken to abandon.

霍林河一号露天矿煤层赋存条件复杂,采煤需要选采,剥离须穿孔爆破破碎排弃,为了简化采煤、剥离工作面作业环节,降低运营成本,对露天采矿机工艺在霍林河一号露天矿采煤及剥离工程中应用的可行性进行研究。

The stores condition of Huolinhe first opencut coal seam is complicated,coal mining needs to choose and peeling needs not only to punching explode but also to broken to abandon.

霍林河一号露天矿煤层赋存条件复杂,采煤需要选采,剥离需穿孔爆破,破碎排弃,为了简化采煤、剥离工作面作业环节,降低运营成本,对露天采矿机工艺在霍林河一号露天矿采煤及剥离工程中应用的可行性进行研究。

The composite influence of mining of caving face 109,caving face 103 and the small coal mine on the Tanghong Highway s deformation is analyzed with FEM.

分析表明,109工作面引起的开采沉陷对公路安全运营虽有一定影响,但影响不大,可以进行公路和村庄下采煤,109工作面的开采可以保证公路的正常运营及村庄建筑物的安全使用。

Optimization method of mining coal under Liangjia Village in Xinfa mine filed;

新发井田梁家村下采煤的优化方法

2‰,the relativeheight is 76lm and the mountain s1ope is 25°-35°, There are over 40 shafts r mining coal inthe gully and coal bed is in the Baiguowan Group of.

这场泥石流主要是沟内的大量采煤弃碴等松散碎屑物质在暴雨的激发下形成的。