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crystal detector 晶體檢波器。

crystal diode

Crystal detector tester 晶體檢波器試驗器

Galena crystals detectors 方鉛晶體檢波器

The cooling and heat preservation of bgo glitter crystal detector 復合材料纏繞壓力容器的失效風險分析

The crystal detector was soon replaced by the thermionic value and had largely become obsolete by 1939 . 晶體檢波器不久即被熱電子管所代替,到1939年已大部分變成了廢物。