Ceaseless silting and compensating in adjacent two rivers,extra-thick coal seams formed in depressed topographic lows annularly,and the main control f...

• 在今后的找煤与勘探工作中,采用综合勘探技术对厚煤层变薄及缺失和基底构造形态予以精确控制,是满足高产高效矿井对地质条件精度要求的必要。