coal mine vertical shaft的意思|示意
美 / /
英 / /
煤矿立井
coal mine vertical shaft的网络常见释义
煤矿竖井 煤矿竖井井筒装备制定施工方案须注意的问题 关键词:煤矿竖井,井筒装备安装,施工方案,问题 [gap=433]Key words:coal mine vertical shaft, shaft equipment establishment, constructin scheme, problem
coal mine vertical shaft相关例句
According to the analysis for failure reasons of vertical shaft wall in Linhuan Coal Mine, its main reason is longitudinal load produced by negative frictional force.
分析临涣煤矿区竖井井壁破坏的原因，主要是由负摩擦力产生的纵向荷载引起的。