dielectricityn.介电性dielectricn.电介质；绝缘体adj.非传导性的dielectric battier discharge介质阻挡放电dielectric film spot welding介质点焊dielectric-sheet polarizer介质板极化器dielectric optical thin film介质光学膜dielectric dual-mode filter双模介质滤波器Dielectric anisotropic medium电各向异性dielectric breakdown strength介质击穿强度dielectric breakdown accident绝缘击穿事故dielectric periodic structure介质周期结构dielectric hot soaking method介质热浸法