2) deep coal mining
煤田深部开采
1.
Aiming at the problem of forecasting coal and gas outburst and water eruption caused by karst collapse column in deep coal mining in east China,the principle and method of minimum travel-time of seismic tomography were discussed.
针对我国东部煤田深部开采中煤和瓦斯突出地应力异常及陷落柱突水预测问题,讨论了最小走时地震层析成像的基本原理和实现方法,并对地应力异常及不同的陷落柱模型进行了层析反演成像。
3) Kaiping coalfield
开平煤田
1.
Based on geological exploration and mining data in the Kaiping coalfield,combined with studied results of the predecessors,systematically analyzed structural distribution and combination features in the area.
依据开平煤田地质勘查和矿井开采资料,并结合前人的研究成果,在系统分析地质构造展布规律和组合特征的基础上,选取NW向剖面作为平衡剖面,采用平衡剖面方法,对煤田构造变形及其对煤层赋存影响进行了研究。
4) deep part of Dongsheng coalfield
东胜煤田深部区
5) deep coalmining
煤矿深部开采
1.
Geological exploration techniques used in deep coalmining in China;
中国东部煤矿深部开采中的地质勘探技术
6) deep unmineable coal seam
深部不开采煤层
补充资料：开平
开平——
今日开盘价与昨日收盘价持平。
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