1) coal outcrop
露头煤层
1.
during researching the development of spontaneons combustion of coal outcrop.
论述了煤体与岩体的受热破坏特性 ,对露头煤层自燃火灾中煤岩体的热破坏机制进行了定性分析。
2) coal seam outcrop
煤层露头
1.
To use 3D seismic prospecting in control of coal seam occurrence form has demonstrated its satisfying effects,but for a mine's high yield,high efficiency geological guaranteeing system still need to determine geological anomalous bodies of“barren zone”,subsided column,gob area and coal seam outcrop etc.
三维地震勘探在控制煤层赋存形态方面已取得了令人满意的效果,但矿井高产高效地质保障系统需要准确圈定“无煤带”、陷落柱、老窑采空区、煤层露头等地质异常体。
3) coalfield outcrop
煤田露头
1.
Theoretical analysis of numerical value of the spontaneous combustion fire-heating air pressure for coalfield outcrop;
煤田露头自燃火风压数值的理论分析
4) crop coal
露头煤<能>
5) Outcrop Coal
露头煤
6) outcrops of coal pillars
露头煤柱
1.
In order to improve the recovery rate of resources and extend the service life of mine,the Fourth Well of Meihe Coal Mine plans to use open-pit mining on the shallow outcrops of coal pillars in steep thick seam(12 seam).
为提高资源回收率、延长矿井服务年限,梅河煤矿四井计划采用露天开采方式对急倾斜特厚煤层(12煤)的浅部露头煤柱进行回收。
补充资料：露头
地下岩体、地层和矿床等露出地表的部分。可分为天然露头和人工露头。野外地质观察中直接或间接地反映了岩石性质、地层产状、地壳变动及矿产蕴藏等情况。
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