sir表面: surface; superficies; bounda ...绝缘: insulation; isolation; insul ...阻抗: impedance表面绝缘阻抗或电化迁移缺陷: surface insulation resistance or electrochemical migration failure绝缘阻抗: mega ohms; sir :surface insulation resistance下载手机词典可随时随地查词查翻译