煤产地

  • 网络Coal producing area;coal district
煤产地煤产地
  1. 中国几个主要煤产地煤中微量元素特征

    Characteristics of trace elements in coals from several main coal districts in China

  2. 华亭煤产地含煤岩系成因地层分析及主煤层成因

    Genetic Stratigraphy Analysis of the Coal Measure and Genesis of the Main Coal Seam in Huating Coal-producing Area