1) beam hole
束流孔，束孔
2) beam bole
束流孔
4) bundle holes
集束炮孔
5) bundle-hole blasting
集束孔
1.
The complex technical problems of pillar group mining are solved by applying high efficiency block forced caving method with bundle-hole blasting and safety measure of flexible shockwave resistance wall,even ore drawing,and covering co.
本文分析了该矿柱群开采技术特点,针对性地采用高效率的集束孔阶段强制崩落技术,同时采取了柔性阻波墙、均匀放矿、地表覆盖等系统的安全控制措施,解决了复杂隐患区矿柱群回采技术难题,达到了根治火区隐患的目的。
6) borehole restrained
钻孔约束
1.
Research and application of seam thickness prediction method with borehole restrained frequency area quantified;
钻孔约束频域定量预测煤厚方法研究与应用
补充资料：束流
1.狭窄的水流。
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