单词	ruby laser
释义	ruby laser noun : a laser in which red light is produced by an atomic transition of the chromium contained in a ruby rod Word History First Known Use 1960, in the meaning defined above
随便看	cholecystectomized cholecystectomy cholecystitides cholecystitis cholecystokinin cholecystokinins cholecystotomies cholecysts choleic cholelithiases cholelithiasis cholelithotomies cholelithotomyes cholelithotomys choleliths cholent cholents choler cholera cholera belt cholera morbus choleras choleric cholerically cholers

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