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1·In the paper, a new equivalent resistivity design method is proposed for thyristor.

提出一种晶闸管最佳等效电阻率设计方法。

2·The present paper deals with the definition and algorithm of impedance real part equivalent resistivity in horizontal electric double source frequency electromagnetic sounding.

本文讨论了水平电偶源频率电磁测深中阻抗实部等效电阻率的具体定义和算法。

3·The results by inversion show that the equivalent true resistivity-time curves for layers could be used to reveal the physical process int he respective layers intuitively and clearly.

结果表明：反演得到的各层等效电阻率曲线可以直观、清晰地反映地下介质内部发生的物理过程。

4·The analytic computational formula for grounding resistance of grounding rods in three-layer soil is derived based on the concept of equivalent soil resistivity.

基于等值土壤电阻率的概念，导出了三层土壤中垂直棒接地电阻解析计算公式。