The resistivity of a formation measured by flowing current in a horizontal plane.
通过把电流流进水平面所测量的地层电阻率。
In formation test interpretation, plane radial flow method would result in serious deviation of permeability interpretation.
在地层测试解释中，若仍用平面径向流方法，则必然造成渗透率解释的严重偏差。
Can focus sunlight in the focal plane, the formation area of different sizes and brightness of different focal spot.
可以把太阳光聚焦在焦面内，形成面枳大小不同和亮度不同的焦斑。
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