测量过程中，电极放置在极板上紧贴井壁测量。
The electrodes are mounted on a pad that is pressed against the borehole wall.
一种短源距不聚焦的电极系测井设备，安装在极板上紧贴井壁。
An unfocused electrode device with small spacings, mounted on a pad and pressed against the borehole wall.
另有一些极板需要使用连接装置才能和下井仪器相连，测井时需要使用推靠臂才能紧贴井壁。
Others have articulated joints attaching them to the logging tool, with a backup arm to press the pad against the borehole wall.
电缆测井仪器的一部分，测井过程中紧贴在井壁上。
That part of a wireline logging tool that is pressed firmly against the borehole wall.
当外力不足以使钻柱紧贴于井壁的一侧时，钻柱的刚度对钻柱与井壁之间的接触力有影响。
When the force can not contact drill string with one side of the borehole wall, the stiffness of drill string can influence the contact force.
当外力不足以使钻柱紧贴于井壁的一侧时，钻柱的刚度对钻柱与井壁之间的接触力有影响。
When the force can not contact drill string with one side of the borehole wall, the stiffness of drill string can influence the contact force.
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