We have studied synthetically the tectonic stress field in the Three Gorges and its adjacent area by use of data of crustal deformation, focal mechanism and borehole stress observation.
利用地形变测量、震源机制和钻孔应力测量等资料，综合研究了三峡及邻区的构造应力场。
Microfossil analysis reveals three transgression layers in the CQJ4 borehole, which are at 4.
微体生物分析显示该孔岩芯记录了三个海侵层，分别位于4。
In order to appraise the quality testing of grout curtain, digital borehole camera technology is applied to three boreholes of the grouting gallery no. 3 in Xiaolangdi Water Control Project.
为了评价帷幕灌浆效果，将数字钻孔摄像技术应用到小浪底水利枢纽3号灌浆洞3个灌浆质量检查孔中。
Preexisting research shows that there are three main factors that affect the borehole stability of Air-Drilling: mechanical reason, hydration reason and the Weaked surface instability reason.
研究表明，影响空气钻井井壁稳定的主要因素有三个：力学不稳定，水化不稳定和岩体破裂或弱面不稳定。
The three-dimensional numerical model of the vertical borehole heat exchanger of ground source heat pump was established and the accuracy of numerical model was verified in this paper.
以地源热泵垂直埋管换热器为研究对象，建立地源热泵垂直埋管换热器的三维数值模型，通过实验对数值模型进行验证。
In the case of scientific deep-drilling Wells, therefore, it is desirable to combine borehole methods with core-based methods to obtain a complete three-dimensional in-situ stress.
所以，在以科学研究为目的的钻井工程中，最好能够结合钻孔法和岩芯法得到三维地应力的大小和方向。
In the case of scientific deep-drilling Wells, therefore, it is desirable to combine borehole methods with core-based methods to obtain a complete three-dimensional in-situ stress.
所以，在以科学研究为目的的钻井工程中，最好能够结合钻孔法和岩芯法得到三维地应力的大小和方向。
应用推荐