The location of the crack can be found by the change of the apparent resistivity, based on four-probe electrical resistivity measuring technique.
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 utility model discloses an electrical coal consumption integrator, belonging to the improvement of the boiler coal consumption measuring technique.
电子煤耗积算器，属于锅炉耗煤测量技术的改进。
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