1) coal mining under water-bearing strata
含水层下采煤
2) underwater mining
水下采煤
1.
Though practice and research of underwater mining in Qiutian ditch,improved recovery rate of coal resources,provides a reliable technology parameter for carrying out "three method of mining"(under buildings,railways and water).
通过对丘田沟水下采煤的实践与研究,提高了煤炭资源的回收率,为进行"三下"采煤提供了可靠的技术参数。
3) lower coal group aquifer
下组煤充水含水层
4) mining under reservoir
水库下采煤
1.
Height prediction of the water conducted zone for mining under reservoir;
水库下采煤导水裂隙带高度预测
补充资料：含水层
见地下水。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条