electret

n. [电]驻极体, 电介体

词形变化

electrets 复数 electrets

释义与例句

n.
  1. 1.

    A solid dielectric having a quasi-permanent charge; usually a metallized film; used in electroacoustic and electromechanical transducers and in air filters.

    驻极体

    物理

词源

Blend of electricity + magnet.

来源：wiktionary