Power equipments are connected to earth to ensure the safely of equipments and engineers. Mirror image method can be a effective to calculate the earth resistance and step voltage.
将电力设备的某些部分接地，是为了设备与操作人员的安全，本文应用镜像法对此进行了一些具体的分析计算。
The analytical expressions of the electromagnetic field generated by the DC electric dipole in the upper space for the two-layer mode were obtained by using the method of mirror image.
将任意分布的电流源产生的电磁场看作是电偶极子产生的电磁场的叠加，利用镜像法推导了上半空间中的垂直直流电偶极子在两层媒质中产生电磁场的解析解。
The analytic method of deep well dewatering with two lateral linear recharge boundary was obtained by successively adding infinite multi-mirror-image reflections.
通过无穷多次镜像反射叠加得出两侧直线补给边界深井降水分析方法。
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