浅埋深煤层  shallow buried depth coal seam

浅埋深薄基岩煤层  shallow coal seam with thin bedrock

浅埋深厚煤层  shallow buried coal-seam; shallowly-buried and thick seam

深层煤层气  Coal bed methane

薄基岩浅埋煤层  the shallow buried coal seam of thin base rock

大倾角地层煤层气钻井  CBM well boring in strata at great inclination

煤层层数  coal layers

煤层煤样  coal seam-sample; coal seem sample

煤层煤质  coal seam a nd coal quality

浅埋煤层  shallow overburden coal mine; shallow lying coal seam; seam with shallow mining depth; shallow seam; shallow-buried coal seam; shallowly buried coal seam; shallow coal-seam; shallow buried coal seam; shallow coal seam

浅埋煤层气  shallow CMB

深层煤矿床  deep coal deposit

土层覆盖下浅埋煤层  shallowly buried coal seam under soil strata

储层埋深  reservoir buried depth

地层埋深校正  Correction for Buried Depth of Strata

断层埋深  Fault depth

土层埋深  depth of soil layers

土层埋深水位系数  coefficient of the depth and water level of soil l; coefficient of the depth and water level of soil layers

三软中厚煤层  three soft in the thick coal seam