under-group coal seam的意思|示意
群下煤层
under-group coal seam的网络常见释义
下组煤 ...键词 ： 寺河矿；下组煤；带压开采；峰峰组；相对隔水层；FLAC 3D [gap=625]Keywords : Sihe Mine；under-group coal seam；mining under pressure；Fengfeng Group；relative aquifuge；FLAC 3D ..
under-group coal seam相关例句
Based on an example from Datong Coalmines Group, the paper analyses possibility and usage of heavy plow under the conditions of thin seam coal face with Two Hard Roofs and gives out some proposals.
介绍了新型刨煤机的主要性能和结构特点以及使用条件，结合晋城矿区煤层赋存条件，论证了刨煤机在晋城矿区使用能大幅度地提高综采工作面煤炭块率。