broken coal

broken coal什么意思,broken coal翻译

基本解释

na.: 碎煤
网络: 破坏煤；煤块

英汉解释

• 碎块级无烟煤

例句

• Because of crack structure, high gas amount, concentrated stress, soft and broken coal, it"s very difficult for tunneling.

  巷道在掘进时由于受断裂构造的影响，瓦斯含量大，应力集中，煤体松软、破碎，掘进困难。

• Exploitation Technique of Using the Suspended Bracket to Put Down Upper Coal in the Punky and Broken Coal Bed

  松软破碎煤层悬移支架放顶煤开采技术

• Experimental study on the characteristics of compaction of the saturated broken coal waste

  饱和煤矸石的压实特性研究

• Supporting technology with meshing and bolting in high gas, inflammable, soft-broken coal seam

  高瓦斯易燃松软破碎煤层锚网支护技术

• Experiment Introduction of Broken Coal with High-pressure Waterflood in the Pits in Pinghu Coal Mine

  坪湖矿井高压注水破煤实验简介

• Study and Practice of Bolt-Beam-Mesh Support Technology for Broken Coal Roof in Steeply-tilting Coal Seam

  大倾角复合破碎顶板煤层锚梁网支护技术研究与应用