短語詞組短語earth leakage current 漏地電流;漏電電流;對地泄漏電流earth coil current 接地線圈電流earth h current 大地電流earth air current 地一空氣流earth conduction current 空地傳導電流earth line current method 接地線電流法earth -current prospecting 地電流探礦earth leakage current breaker 漏電斷路器 返回 earth current