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- horizontal shallow blast hole 水平浅孔
- Keywords Houxi Opencast Mine;rock blasting;horizontal shallow blast hole;practice; 侯西露天矿;凿岩爆破;水平浅孔;实践;
- The form and devel-opment of the blast hole cracking is t he main reason which leads to the effe ctive crush. 不同炮孔周围裂纹的适量产生与发展,是引起岩石有效破碎的真正原因。
- At the Garson Mine in the Sudbury basin, an instrumented test opening has been mined under a paste backfil1ed blast hole stope. 而在萨德伯里盆地的加森矿,已在采用深孔崩矿的膏体充填体下进行试采。
- Blact hole cxplesion in a confed condition within tunneling is analysized,a stage-by-stage blast hole design theory and the related paraameters are presentes. 对掘进中处于夹制情况下的炮孔爆破进行分析,提出炮眼分阶段设计的原理及有关的参数。
- The study has sho wn that the deeper the blast holes, the longer the initiation delay time. 应用模型对掏槽微差起爆时间进行的优化研究表明,掏槽微差起爆时间与孔深成正比。
- His strength in a crisis is an ace in the hole. 临危不惧是他的看家本领。
- It is only shallow people who judge by appearances. 只有浅薄的人才会以貌取人。
- The stemming length of blasting hole is an important bla sting parameter,directly related to the blasting results. 在爆破中,炮孔堵塞长度是一个重要的爆破参数,它直接关系到爆破效果。
- Blasters in this unit group fill blast holes with explosives and detonate explosives to dislodge coal, ore and rock or to demolish structures. 爆破员用炸药填补爆破洞,然后引爆炸药提炼出煤炭,矿石和岩石或粉碎建筑物。
- The vertical line meets the horizontal one here. 垂直线与水平线在此相交。
- Small hole drilling and shallow blasting to guarantee excavation accuracy 用小孔径浅孔爆破保证开挖精度
- By improving parameters of the blasting hole,the charge,charging structure and the priming order etc,the smooth blasting is formed. 通过改进爆破的孔网参数、装药量与装药结构、起爆顺序等,从而形成了光面爆破。
- The accordion was in full blast in the hall. 在大厅里手风琴拉得非常响亮。
- The rain ran in shallow runnels alongside the path. 雨水流进路边的小河沟里。
- Our ship grounded in shallow water/on a sandbank. 我们的船在浅水中[在沙滩上]搁浅。
- He chiseled a hole in the door to fit a new lock. 他在门上凿了个孔,以便装一把新锁。
- She has a rather shallow personality. 她的个性相当浅薄。
- The bird picked a hole in the ice with its beak. 那鸟在冰上啄出了一个洞。
- That dish is too shallow to serve soup in. 那只盘子太浅了,不能盛汤。