The artificial dig hole perfusion stake of coteau road's bridge is one of the common construct method, which has the merits such as simple technology, easily mastery, and has wide prospect.
山区公路桥梁人工挖孔灌注桩是一种常见的施工方法，其技术简单，易于掌握，具有十分广阔的应用前景。
2
Is a mistake everyone to living to changes with the prospect, scheme other people human life that like with the technical ability's dirty place, such as black hole.
是误人人生和前途，企图改变别人好的人生和技能的肮脏的地方，如黑洞。
3
The domestic and foreign status of the research and development on vibration drilling micro-hole is summarized, and the applying prospect and the existing problems are also analyzed.