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- 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
- medium - length or deep hole blasting 中深孔爆破
- large diameter deep hole blasting 大直径深孔爆破
- Technique of wedge cut in middle and deep hole blasting 中深孔爆破的楔形掏槽技术
- Improving Methane Drainage Rate by Cross-Seam Deep Hole Blasting 穿层深孔爆破提高瓦斯抽放量
- DEEP HOLE BLASTING TECHNIQUE IN COAL BED OF JIAZHUQING HIGH-GAS TUNNEL 家竹箐高瓦斯隧道煤层深孔爆破技术
- Argos Pine Small Extra Deep Bookcase. （几乎是新的）卖价£
- A Reasonable Choice of the Initiation Method of Open-pit Deep Hole Blast 露天深孔爆破起爆方法的合理选择
- "RFSU" PAN - ACCESSORIES MADE OF ABS PLASTIC, EXTRA DEEP. 产品名称"RFSU"胶便盘-配件ABS胶料制成,特别深
- 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
- Non-linear Temporal Analysis on Response of Building Frame Under Deep Hole Blasting Earthquake Wave 深孔爆破对房屋结构的非线性动力反应
- Preliminary Discussion of the Selection of Deep Hole Blasting Parameters of Open-pit Benches 浅谈对露天台阶深孔爆破参数的选取
- They first dug a deep hole in the ground. 他们先在地上挖了一个深洞。
- Keywords THREE GORGE engineering;similarity theory;flyrock distance;deep hole blasting; 三峡工程;相似理论;飞石距离;深孔爆破;
- Depth 1: Fully elasticized with an extra deep 18” fitted skirt and reversible for long-lasting wear. （床帏）深度1：四周加松紧带，深度18"。
- He dug a deep hole in the garden. 他在花园里挖了个深坑。
