| 单词 | mercury vapour lamp |
| 释义 | > as lemmasmercury vapour lamp mercury vapour lamp n. a lamp in which bluish light, rich in ultraviolet, is produced by an electric discharge through mercury vapour, the envelope being often coated with a fluorescent substance so as to produce more visible light (cf. fluorescent lamp n. at fluorescent adj. Compounds). ΘΚΠ the world > matter > light > artificial light > an artificial light > artificial light defined by light-source > electric light > [noun] > arc light > mercury vapour lamp mercury lamp1903 mercury vapour lamp1904 mercury arc1906 mercury arc lamp1906 mercury vapour light1914 1904 Brit. Patent 3657/1904 2 The light given out is similar to that which is given by an ordinary mercury vapour lamp. 1943 J. B. Priestley Daylight on Sat. i. 2 The factory inside is..lit with innumerable mercury-vapour lamps that produce a queer greenish-white mistiness of light. 1955 E. B. Ford Moths i. 15 Owing to the high power and surface-brightness of a mercury-vapour lamp, such a source may provide a more efficient means of collecting than an ordinary light. 1994 Fiddlehead Autumn 7 In the eerie blue light from the mercury-vapour lamp, the croissants took on a Daliesque look. < as lemmas |
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