magnetotelephone

[电] 永磁电话

词形变化

magnetotelephones 复数 magnetotelephones

释义与例句

n.
  1. 1.

    An early telephone with a diaphragm of soft iron placed close to the pole of a magnet upon which is wound a coil of fine wire. Its vibrations produce corresponding currents in the wire by induction.

    过时

词源

From magneto- + telephone.

来源：wiktionary