1) Hole Distance
孔距
1.
Machining for a pair of Profiled Hole with Hole Distance Requirement;
一对有孔距要求的异型孔加工
2) Holespacing
炮孔孔距
3) wide-space disposal bore hole
宽孔距布孔
4) distance of the gas drainage
抽采孔孔距
1.
The new measuring method for distance of the gas drainage hole and seam permeability
瓦斯抽采孔孔距及煤层透气性的测定方法
5) different distance of hole
不等孔距
1.
Based on comprehensiveness analysis and calculation on data from blasting experiments including blasting crater, incline bench, different distance of hole,initiation in multi-row and same stage, optimization of blasting parameters such as distance of hole bottom, minimum burden, explosive consumption an unit etc.
通过爆破漏斗、斜面台阶、不等孔距爆破试验以及多排同段起爆试验,在综合统计并分析计算各种试验数据的基础上,对鸡冠嘴金铜矿的中深孔凿岩爆破孔底距、最小抵抗线、单位炸药消耗量等参数进行了优化,并在实际生产中推广应用,取得了较好的技术经济效果。
6) wide-space
宽孔距
1.
Recently,the practice improved that using technique of wide-space small burden blasting can improve the rock crushing,low the big crushing rock rate,reduce the secondary crushing cost.
近年来实践表明,应用宽孔距小抵抗爆破技术能改善岩石破碎质量,降低大块率,减少二次破碎成本。
补充资料：第二孔(继发孔)型缺损
第二孔(继发孔)型缺损
ostium secondary defect
是心房间隔在形成上发生障碍，一般缺损较大，多在卵圆孔附近称第二孔(继发孔)型缺损。
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