短語詞組短語Grounding copper wire 接地銅線grounding g wire 接地線bushing tap grounding wire 套管末屏接地線protective grounding wire 保護(hù)地線grounding wire size 接地線尺寸overhead grounding wire 避雷線Short circuit grounding wire 短路接地線bushellong tap grounding wire 套管末屏接地線grounding wire impedance 地線阻抗 返回 grounding wire