单词	crystal detector
释义	crystal detector noun radio : a detector that depends for its operation on the rectifying action of the surface of contact between certain crystals (as of galena) and a metallic electrode Word History First Known Use 1903, in the meaning defined above
随便看	cascara buckthorn cascara sagrada cascaras cascarilla cascarilla oil cascarillas cascaron cascarones cascavel caschroms casco Casco Bay cascos case case bay case binding case bottle case count case fatality rate case fatality rates case fatality ratio case fatality ratios case goods case grammar case gun

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