electret relay中文什么意思

• 驻极体继电器

• relay:    n. 1.接替的马；驿马；接替的狗；(备有接替马匹的)旅 ...
• 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