单词 | metal halide lamp |
释义 | metal halide lamp [`med·ǝl `ha´līd ´lamp] ELECTRONICS A discharge lamp in which metal halide salts are added to the contents of a discharge tube in which there is a high- pressure arc in mercury vapor; the added metals generate different wavelengths, to give substantially white light at an efficiency approximating that of high- pressure sodium lamps. |
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