| 释义 |
DictionarySeeSir William CrookesCrookes glass
Crookes glass[′kru̇ks ‚glas] (materials) A type of glass that contains cerium and other rare earths and has a high absorption of ultraviolet radiation; used in sunglasses. Crookes glass
Crookes glassa spectacle lens combined with metallic oxides to absorb ultraviolet or infrared rays.Crookes glass (kruks glas) A spectacle lens combined with metallic oxides to absorb ultraviolet or infrared rays. Crookes, Sir William, English physicist and chemist, 1832-1919. Crookes glass - a spectacle lens combined with metallic oxides to absorb ultraviolet or infrared rays. |