Supporting the use of impact drilling electric drill. Drilling, hole spacing with hole depth should meet the design requirements.
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。
But when according to the site conditions determined to crack a drilling section with oblique relations, hole spacing can enlarge exploration.
但当根据现场条件确定的钻探剖面与地裂缝呈斜交关系时，勘探孔间距可以适当放大。
Only by controlling fairly the hole spacing, secondary grouting time interval, number of secondary grouting and seal around grouting pipe can the...
要提高施工工艺水平，应掌握好布孔间距、复灌间隔时间、复灌次数及注浆管周围封堵等环节。
According to deep hole blasting practice, the wide hole spacing small burden technology is studied because the technology can improve quality of blasting.
根据深孔爆破工程实践，对宽孔距小抵抗线爆破技术进行了研究，该技术可改善爆破质量。
After the test road, summarizes the slab grouting technique for composite pavement, determines the grouting pressure, hole arrangement, hole spacing and other key indexes.
通过试验路的实践，总结了适用于复合式路面的压浆工艺，确定了压浆压力、布孔方式、孔距等关键参数。
Bolt Hole Spacing should be consistent with the allowable deviation of norms.
螺栓孔孔距的允许偏差应符合规范的规定。
Bolt Hole Spacing should be consistent with the allowable deviation of norms.
螺栓孔孔距的允许偏差应符合规范的规定。
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