WF公司所生产的纯铜接地棒有着极强的抗腐蚀性。
WF solid copper earth rods offer greater resistance to corrosion.
本质上它就是一个法拉第笼，整边通过多个接地棒都与地相接。
In essence, it is a Faraday cage with an entire side connected to earth via multiple ground rods.
他说，接地棒是最基本的，避雷器成本可能高达400美元或以上，但或许更大的开支是组织和维护这个系统。
While grounding rods are basic and surge protectors can cost as much as $400 or more, a perhaps bigger expense is to organize and maintain the system, he said.
试验探棒还需穿过在表面覆盖一层非导电涂层如瓷釉或清漆的接地金属外壳的开口。
The test probe is also applied through openings in earthed metal enclosures having a nonconductive coating such as enamel or lacquer.
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。
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。
The analytic computational formula for grounding resistance of grounding rods in three-layer soil is derived based on the concept of equivalent soil resistivity.
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