Oxidation will make ground-wire of lightning arrester rusty.
氧化（作用）会使避雷装置的接地线生锈。
By using some encoders to construct 1-wire control bus, an intelligent power source is designed and the automatic test system of arrester direct current spark-over voltage is built up.
采用译码器构成单总线控制，设计了智能电压源组成气体放电管直流击穿电压自动测试系统。
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