基于四探针电阻率测量技术，依据试验测得的混凝土表观电阻率变化确定裂缝位置。
The location of the crack can be found by the change of the apparent resistivity, based on four-probe electrical resistivity measuring technique.
利用套管供电，通过地表观测视电阻率研究油田注水分布和剩余油分布近来在油田开发中得到了应用。
Recently, resistivity method with vertical line source has been used to study the distribution of injection water and remain oil.
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