Component has the characteristics that coupling nature is weak and cohesive nature is strong. When system has occurred some error, we can Orient the wrong component, even interface function rapidly.
组件具有耦合性弱、内聚性强的特点，从而一旦发现问题，可以迅速地定位错误的组件甚至接口函数。
The impedance of foamed cement is lower compared to conventional cement. It may lead to wrong results to assess the coupling be - tween foamed cement and pipe from the amplitude of CBL.
与常规水泥相比，泡沫水泥声阻抗值较低，用CBL中的常规声幅曲线评价泡沫水泥与套管的胶结质量，可能会得出错误的解释结果。
The waveforms of the current fault component of two phases are symmetrical according to an analysis of wrong-phase-coupling. This characteristic can be quickly extracted by correlation analysis.
基于对异相短路的分析，发现两相电流故障分量波形呈现反向对称性，可利用相关分析法快速提取此特征。
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