About Yang Wanzhao
About 山東黄金集団焦家金鉱,山東莱州県,261441
About Chen Siru
About 山東黄金集団新城金鉱,山東莱州県,261441
About Zhang Jingtao
About 山東黄金集団焦家金鉱,山東莱州県,261441
About Caikuang Jishu
About spring water
About aquifer
About coke
About grouting
About rock breaking
About hydrogeology
About crush zone
About timbering(mine)
About roadway
About Tunneling work
About 断層帯
About 水層
About 破砕帯
About 作業面
About 注入工法
About 応用