crystal set

短语

[电] 晶体机组

词形变化

crystal sets 复数 crystal sets

释义与例句

n.
  1. 1.

    An early radio receiver, having no electrical power supply except the radio waves themselves; it used a crystal of lead or cadmium sulphide and a wire (the cat's whisker) touching the crystal's surface.

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词汇关系

名词

上位词 4

radio wireless tuner radio set