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- Working practices in rock drifts show that the selected slit-charge directed fracture blasting method is feasible,it opens u... 经岩巷生产实践表明：所选择的切缝药包定向断裂爆破方法是可行的，它为改革现有光面爆破技术提供了良好的应用前景。
- Deep hole directional fracture blast were used in rock entry,which decreased the size of debris,raise the quality of entry and brought economic benefit. 在岩巷中运用周边定向断裂爆破技术,减少了矸石粒度,提高了巷道成形的质量,并且创造了可观的经济效益。
- The model test investigations of directed fracture blasting have been carried out by using the super dynamic measuring system and the 3-dimensional laser holographic dynamic photoelastic instrument. 采用三维激光全息动光弹超动态综合测试系统进行了定向断裂爆破模型试验研究。
- The development of this compound technique of perforating in fracturing blasting of coal seam showed a very promising applicable future. 该技术在煤层致裂爆破以及其他领域的多方向发展,具有良好的应用前景。
- Keywords directional fracture blast;XPM shotcreting additive;econmic benefit; 周边定向断裂爆破;XPM喷射混凝土添加剂;效益;
- The accordion was in full blast in the hall. 在大厅里手风琴拉得非常响亮。
- The party was going on in full blast. 聚会进行得热闹非凡。
- Perhaps there is a fracture in the water pipe. 也许水管有裂缝了。
- The fracture of his left leg is very serious. 他的左腿骨折情况很严重。
- The fracture caused him intense pain. 骨折给他造成了剧烈的疼痛。
- My brother plays his records full blast in his bedroom every night. 我弟弟每天晚上在他的卧室里大声放录音机。
- A blast of the trumpet gave her a start. 突然发出的喇叭声吓了她一跳。
- A trumpeter sent out a warning blast. 号兵吹出告警的号声。
- The bomb blast killed several harmless passers-by. 炸弹爆炸使几个无辜行人受伤。
- Experimental Study of Directed Fracture Blasting in Soft Rock with Slotted Cartridge 切缝药管定向断裂爆破软岩模型试验研究
- Cook the pie for 20 minutes in a pre heated oven. 在经过预热的烤箱里烘烤馅饼20分钟.
- A defect in the fuel lines prevented the missile from blasting off. 燃料管路上的一个缺陷妨碍了导弹的发射。
- The pre - christmas period be always very busy . 圣诞节前这一段时间总是很繁忙的。
- Keywords Rock drift directional fracture blasting stress field around boreholes Cirumferential controlled blasting; 岩巷定向断裂爆破;炮孔应力场;周边控制爆破;
- Just pre the switch on your arm rest. 您按一下扶手上的那个开关就行了。
