[电子] 人工驻极体 electret: 永久极化电介质; 柱极（电介）体（永久极化的电介质）; 驻极电介体; 驻极体；永电体dipolar electret: 偶极驻极体elec electret: 驻极体electret earphone: 驻极体耳机electret element: 驻极体元件下载手机词典可随时随地查词查翻译
