ib pillar是什么意思

用法例句

Control of Oversize Ore and the Sidewall of the Stope of Panel upward Medium-length Hole Mechanized Mining;

盘区上向中深孔机械化采矿法采场边帮及大块的控制

The haulage between panels were summarized based on actuality,The influencing factors in its application were described which opened a new way of mechanized mining medium thickness orebody.

介绍了望儿山金矿在采场回采过程中使用微型铲运机出矿情况 ,并根据实践总结出微型铲运机在采场盘区之间的运搬方式 ,阐明了铲运机应用过程中的影响因素 ,为中厚矿体实现机械化开采做出了新的尝

The experimental study on optimization of drilling-and-blasting Parameter of panel stope;

盘区采场凿岩爆破参数优化试验研究