单词	cadmium lamp
释义	cadmium lamp noun : a vapor lamp in which the fluorescence of cadmium vapor produces red light whose wavelength taken as 6438.4696 international angstroms is used as a standard of length Word History First Known Use 1897, in the meaning defined above
随便看	Palmer Archipelago palmer fly Palmer Land palmer moth palmer oak palmer peninsula Palmerin palmers Palmerston Palmerston North palmerstonian seignior seigniorage seigniorages seignioralties seigniories seigniors seigniorships seigniory seignorage seignorages seignorial seignories seignory seihun

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