loose coal seam

 
  • 松软煤层

loose coal seam的用法和样例:

例句

  1. Rock Bolting Support Technology for Loose Coal Seam
    松散煤层锚杆支护技术
  2. Practice of Support in the Air Return Roadway and the Loose Coal Seam Working Face with High-Methane
    高瓦斯极松软煤层工作面及上风巷支护实践
  3. The coal seam of fully mechanized top-coal caving face 1151(3) in Xieqiao coal mine of Huainan mining area is soft and loose,and is of low permeability and poor wetting condition.
    基于淮南矿区谢桥煤矿1151(3)综放面,煤层松软、渗透性低、湿润性差的特殊条件,采用煤层注水工艺技术降尘,在注水孔布置方式及参数、注水孔封孔工艺、注水工艺等方面采取一定的技术措施。
  4. Analysis on Forming of the Top Loosing Coal of Drift Along the Low and Spontaneous Combustion Characteristic in Thick Coal Seam
    厚煤层巷顶松散煤体的形成及自然发火特点
  5. Coal miners; coal seams; coal haulers.
    煤矿工; 煤层; 运煤工

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