Application of fly ash grouting technology in xinzhuangzi coal mine 新庄孜矿粉煤灰注浆技术的应用
2.
A research on the black sandy soil profile at xinzhuangzi in xuanhua basin hebei province 宣化盆地辛庄子黑砂土剖面研究
3.
Extraction scheme of protective seams and its implementation effect in xinzhuangzi mine 新庄孜矿保护层开采方案及实施效果
4.
The experience in reduction of dense medium consumption of dense medium coal cleaning system at xinzhuangzi coal preparation plant 新庄孜选煤厂重介质选煤系统降低介质损耗的经验
