短語詞組短語earthing g resistance 接地電阻earthing resistance unit 接地電阻器measurement of earthing resistance 接地電阻的測量Earthing resistance tester 接地電阻測量儀;接地電阻丈量儀Earthing resistance Reader 接地電阻讀數(shù)表Earthing resistance test 保護(hù)接地之阻抗earthing short circuit resistance 耐接地短路能力impulse earthing resistance 沖擊接地電阻 返回 earthing resistance