Based on the construction method of Yakou Tunnel of Neikun Railway, this thesis introduces the factors that influence the depth of dynamite holes and present the reasonable circulating footage of tunneling construction under different enclosing conditions by using statistics and analyzing each proce- dure time of every circulating footage in different types of enclosing rock.
结合内昆铁路垭口隧道的施工,论述隧道围岩条件对炮眼深度的影响因素,通过对不同类别围岩每一掘进循环中各工序时间的统计分析,提出了在不同围岩情况下,隧道施工的合理循环进尺。
Author put forward some proposals such as the depth of dynamite hole,shape of underholin,parameter of underholin and control dynamite.
该篇论文从炮眼深度、掏槽爆破、光面爆破几个方面探讨岩巷施工中应注意的一些问题。
Selection on Depth and Diameter of Blasting Borehole for Rapid Heading of Mine Rock Roadway in Deep Level of Mine
煤矿深部岩巷快速掘进炮眼深度和直径选择
It is important for the cable length to be suitable for the depth of the hole concerned.
脚线的长度要适应于炮眼的深度，这一点是很重要的。
The charge concentration in the contour holes should be as small as possible.
周边炮眼的装药集中度应当尽可能小一点。
Blasthole logging and supervision of blasthole sampling.
记录炮眼数据，并监督炮眼采样工作。
STUDY ON TEACHING EXPERIMENT OF DEEP PERCEPTION ──THE DISSIMILARITY OF MONOCULAR AND BINOCULAR IN DISCRIMINATION OF THE DEPTH;
深度知觉教学实验研究──单眼和双眼在辨别深度中的差异
Nearsighted eyes were equipped with thick lenses of great distance-power.
一对近视眼戴着一副深度的、厚厚的眼镜。
Pre-stack depth migration technique can be realized either in shotpoint receiver domain or in CMP offs et domain.
叠前深度偏移技术既可在炮点—接收点域实现，也可在共中心点—炮检距域实现。
He is a little man with thick glasses.
他戴着副深度近视眼镜，个子瘦小。
"Shells have no eyes.
“枪炮是没有眼睛的。
The lower gun-ports were now below water,
下层炮眼已淹没在水里，
strip-borer drill
露天矿水平炮眼钻机
millisecond round
迟发毫秒爆破炮眼组
perforation compacted zone
炮眼四周挤压密实层
solidly packed tunnel
充填密实的炮眼孔道
permeability of tunnel fill material
炮眼充填材料的渗透率
partially sand packed perforation
地层砂部分充填的炮眼
shotgun marriage [ wedding ]
【采矿】不平衡爆破的炮眼
He says all he has to do is turn around.
爸爸说，他打炮眼呀，打炮眼呀，一扭头就看见我了!