coal caving

 
  • 放顶煤

coal caving的用法和样例:

例句

  1. Finally, the paper considers that the fully mechanized coal caving mining is helpful to control outburst hazard.
    认为:具突出危险性的厚煤层采用综采放顶煤开采法对消突是有积极作用的.
  2. Practices have proved that quick advancing techniqe is applicable in isolated unmined area Comprehensive top coal caving face.
    实践证明,孤岛综放工作面快速推进技术是可行的。
  3. This technique has been used successfully in the air-return gate oJ" 1310 fully mechanized roof coal caving face in Zhangcun Coal Mine.
    该项研究在漳村1310综放面回风巷的工程实践中得到了成功应用和检验。
  4. This article introduced applications,observation and research's actuality and developing trend of fully mechanized top coal caving mining under water.
    介绍放顶煤开采技术在水体下采煤领域中的应用情况、观测研究现状及其发展趋势。
  5. The law of top coal movement on a fully mechanized longwall face with top coal caving wasanalysed thoroughly on the basis of field observation andfinite element calculation.
    本文根据现场观测、数值计算以及理论分析,详细阐述了放顶煤采场的顶煤变形运动规律,指出了顶煤变形运动可划分成四个区:顶煤变形区,压裂区,松动区和放落区。
  6. In early application of fully mechanized top coal mining,Spontaneous fire took place when the backout of fully mechanized top coal caving face was stopped mining.
    在应用综放开采的初期,每当综放工作面停采回撤时,就会发生自燃发火。

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