borehole

• Subsoil - field testing - part 2 : borehole dynamic probing
  心土.现场测试.第2部分:钻孔动态探测
• Blasting compare analysis on spiral notching and circle borehole
  螺旋孔圆孔切槽爆破的对比分析
• Exploration geochemistry research on dafesi borehole d4 , binxian , shaanxi
  4钻孔勘察地球化学研究
• Application of borehole cast pile in complex sloping foundation
  复杂坡面地基中钻孔灌注桩的应用研究
• Standard guide for conducting borehole geophysical logging - neutron
  地球物理测量钻孔的标准指南.中子
• Recommended practic e for sand control technology of artificial borehole wall
  人工井壁防砂推荐作法
• Standard guide for conducting borehole geophysical logging - gamma
  进行钻孔地球物理岩芯记录-的标准指南
• Acoustic log moveout correction based on variation of borehole diameter
  基于井径变化的声波测井时差校正
• Probe into optimization technology of methane drainage borehole
  热管技术在煤矿井下防爆电气设备中的应用
• Five - component borehole magnetometer
  井中五分量磁测井仪