Machining for a pair of Profiled Hole with Hole Distance Requirement;
一对有孔距要求的异型孔加工
The new measuring method for distance of the gas drainage hole and seam permeability
瓦斯抽采孔孔距及煤层透气性的测定方法
Based on comprehensiveness analysis and calculation on data from blasting experiments including blasting crater, incline bench, different distance of hole,initiation in multi-row and same stage, optimization of blasting parameters such as distance of hole bottom, minimum burden, explosive consumption an unit etc.
通过爆破漏斗、斜面台阶、不等孔距爆破试验以及多排同段起爆试验,在综合统计并分析计算各种试验数据的基础上,对鸡冠嘴金铜矿的中深孔凿岩爆破孔底距、最小抵抗线、单位炸药消耗量等参数进行了优化,并在实际生产中推广应用,取得了较好的技术经济效果。
Recently,the practice improved that using technique of wide-space small burden blasting can improve the rock crushing,low the big crushing rock rate,reduce the secondary crushing cost.
近年来实践表明,应用宽孔距小抵抗爆破技术能改善岩石破碎质量,降低大块率,减少二次破碎成本。
The new measuring method for distance of the gas drainage hole and seam permeability
瓦斯抽采孔孔距及煤层透气性的测定方法
Test of Large Hole Distance and Small Resistant Line Blasting Technique in Underground Stope
大孔距小抵抗线爆破技术在地下中深孔采场中的试验
ratio of the pole spacing to the bore diameter of the pole pieces
极靴的间距与孔径比
short focal length (high aperture) lens
短焦距(大孔径)透镜
Relationship between Interpupillary & Innercanthal Distance and Maxillary Anterior Teeth of People with Normal Occlusion
正常者瞳孔间距、内眦间距与上颌前牙的关系
Study of Numerical Simulation of Fan-pattern Hole Bottom Distance of Xiaodonggou Molybdenum Mine
小东沟钼矿扇形炮孔孔底距数值模拟研究
Study on Rational Borehole Space of Crossed Boreholes for Gas Pre-drainage
预抽煤层瓦斯交叉钻孔合理孔间距的研究
overall f - number
总光圈大小, 总孔径焦距比
Supporting the use of impact drilling electric drill. Drilling, hole spacing with hole depth should meet the design requirements.
（1）钻孔使用配套冲击电钻.钻孔时,孔洞间距与孔洞深度应满足设计要求.
The average length from the zygo-alveolar ridge to the pterygomaxillary junction was 26 mm, the average length from anterior nasal spine to the posterior nasal spine was 47 mm, and the angle between the piriform rim to the descending palatine canal and vertical section was 7 8'.
犁状孔边缘至翼腭管的距离平均为37mm; 前后鼻棘的距离为47mm;
The plate has holes of approximately 2 in. in diameter on 7-to 8-in. centers in staggered rows.
板上有直径近2英寸的孔眼，交错横排，孔眼中心距为7-8英寸。
Influence of angles and hole pitches on discharge coefficients of expanded holes at inlet and outlet
角度和孔间距对双向扩张型孔流量系数影响的实验
It lies in the border of pars tensa and pars flaccida and is about 5～8 mm from the stylomastoid foramen to where the chorda tympani nerve leaves the facial nerve.
鼓索神经从面神经发出处距离茎乳孔5~8mm;
As previously mentioned, spacing of the orifice groups with relationship to each other is important.
如前所述，喷孔组合的相互间距是重要的。
In perforated continuous forms paper, the interval between cuts.
在穿孔的连续格式纸上，割线之间的间距。
A Side Hole Fiber Grating Peak Separation Measurement Scheme Based on Polarization Detection
基于偏振检测的边孔光纤光栅双峰间距的测量
Study of Range and Azimuth Ambiguities in Synthetic Aperture Radar;
关于星载合成孔径雷达距离和方位模糊的研究
In Vitro Study the Distances from the Foramina to the Root Apex and Its Clinical Significance
恒牙根尖孔至根尖顶距离及其临床意义