earth conductor

基本解释

Earthing can be divided into two forms: connecting earth and connecting conductor substituted for earth.
接地可分为与大地连接、与替代大地的导体连接两种方式。
The ionosphere, an electromagnetic-wave conductor, 100 kms above the earth, consists of a layer of electrically charged particles acting as a shield from solar winds.
电离层（一种电磁波导体，位于地球上方100公里处）由一层荷电粒子组成，作为一个抵当太阳风的樊篱。
And to make electric conductor or conductor and the distance between the earth have enough insulation, used for type switch gear and other switchgear inside.
并使带电导体间或导体与大地之间有足够的距离绝缘，用于中置式开关柜及其它开关柜内。