noun 下载 🔗分享 电容率,介电常数 A property of a dielectric medium that determines the forces that electric charges placed in the medium exert on each other. Examples : "The high permittivity of the insulating material in the phone's charging cable allows for a stronger electric field, enabling faster charging. " 手机充电线绝缘材料的高电容率意味着能够承受更强的电场,从而实现更快的充电速度。 physics material energy 与AI对话词汇游戏阅读练习