permeabihty of coal seam

• 煤层渗透率

permeabihty of coal seam的用法和样例：

例句

1. An inversive research method was proposed through analyzing the complicated changing features of permeability of coal seam and the problems existing in actual measurement.
   分析了煤层渗透率的复杂变化特点和实际测量上存在的问题，提出其反演方法。