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- Optimization study on orthogonal experiment of medium and deep hole blasting parameters in underground stoping 井下中深孔回采爆破参数的正交试验优化研究
- Application of Medium and Deep Hole Blasting Technology in Medium Hard Rock Tunnel Boring at Haizi Coalmine 中深孔爆破在海孜煤矿中硬岩巷道掘进中的应用
- STUDY ON THE LAYERED CHARGING AND LAYERED TAMPING FOR MEDIUM AND DEEP HOLE BLASTING 中深孔爆破分层装药分层填塞研究
- medium and deep hole blasting 中深孔爆破
- Technique of wedge cut in middle and deep hole blasting 中深孔爆破的楔形掏槽技术
- Application and study of serial blasting crater test method in medium and deep hole mining 系列爆破漏斗试验法在中深孔采矿中的应用研究
- medium - length or deep hole blasting 中深孔爆破
- medium and deep hole 中深孔
- The lines and circles are mountains,valleys,and deep holes. 线条和圆圈是山脉、山谷和深坑。
- The lines and circles are mountains, valleys, and deep holes. 线条和圆圈是山脉、山谷和深坑。
- The feasibility of middle_ deep hole blasting in roadway is discussed from present blasting apparatus, blasting technology and work way and the necessity of lifting excavation efficiency velocity and suitability. 从目前的爆破器材、破技术和作业方式等方面论述了平巷中深孔爆破的可行性,以及它对提高掘进工效、度,适应机械化作业线施工的必要性。
- deep and middle- deep hole blasting 中深孔爆破
- Shaft raise by deep hole blasting 深孔爆破成井
- large diameter deep hole blasting 大直径深孔爆破
- This rich trio of colors enhances light eyes with its combination of light, medium and deep moss shades - perfect for summer! Matte with Shimmer Highlighter. 细致纯净，肤感柔和的质感配方能轻易上妆并持久保持眼部亮丽妆容.
- The snow underfoot wassoft and deep. 脚下的雪又软又厚。
- Newly designed power supply system. While in machining big surface and deep hole, the computer provides two steps servo feed for superior machining quality and discharge accuracy. 全新电源系统，针对大面积及深孔加工，电脑可选定二段伺服进给速度，加工性能优异并可保持放电精密度。
- Improving Methane Drainage Rate by Cross-Seam Deep Hole Blasting 穿层深孔爆破提高瓦斯抽放量
- A deep secret; ancient and deep tribal rites. 奥秘; 古老而神秘的部落仪式
- Keywords rock mass constitution face;medium and long hole blasting;line of least resistance;quasi-cratering effect; 岩体结构面;中深孔爆破;最小抵抗线;似漏斗效应;
