由于闭合、中空导体中的电场为零，所以，使用法拉第杯就把放在其内部的物体屏蔽起来，不受大气的或任何寄生的电场的影响。
The electric field within a closed, empty conductor is zero, so the cup shields the object placed inside it from any atmospheric or stray electric fields.
将最佳屏蔽阵列偶应用于ZCZ(零相关区)阵列中，提出了一种新的ZCZ阵列偶集的构造方法。
The perfect punctured array pairs are used in a zero correlation zone (ZCZ), and then a construction method for ZCZ array pairs set is presented.
而当高阻屏蔽层在平面上趋于无限大而且埋深较大时，这时因进入异常体的电流很小，甚至趋于零，所以地面上观测不到异常体产生的磁异常。
The high resistivity layer shall not be infinitely great or close to surface, otherwise the layer will prevent the current entering the anomaly body and no anomaly will be produced.
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