| 释义 |
searchlight
search·light S0193500 (sûrch′līt′)n.1. a. An apparatus containing a light source and a reflector for projecting a high-intensity beam of approximately parallel rays of light.b. The beam of light so projected.2. A flashlight.searchlight (ˈsɜːtʃˌlaɪt) n1. (Electronics) a device, consisting of a light source and a reflecting surface behind it, that projects a powerful beam of light in a particular direction2. (Electronics) the beam of light produced by such a devicesearch•light (ˈsɜrtʃˌlaɪt)
n. 1. a device, usu. consisting of a light and reflector, for throwing a beam of light in any direction. 2. a beam of light so thrown. [1880–85] Thesaurus| Noun | 1. |  searchlight - a light source with reflectors that projects a beam of light in a particular directionFresnel lens - lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal lengthlight source, light - any device serving as a source of illumination; "he stopped the car and turned off the lights" |
Translationssearch (səːtʃ) verb1. (often with for) to look for something by careful examination. Have you searched through your pockets thoroughly?; I've been searching for that book for weeks. 仔細搜尋 细查2. (of the police etc) to examine, looking for eg stolen goods. He was taken to the police station, searched and questioned. 搜查 搜查 noun an act of searching. His search did not take long. 搜尋(查) 搜查ˈsearcher noun 搜查者 搜查者ˈsearching adjective trying to find out the truth by careful examination. He gave me a searching look. (目光)銳利的 （目光）锐利的 ˈsearchingly adverb 用銳利的目光端詳地 彻底地ˈsearchlight noun a strong light with a beam that can be turned in any direction, used eg to see enemy aeroplanes in the sky. 探照燈 探照灯search party a group of people looking for a missing person. When the climbers failed to return, a search party was sent out. 搜索隊 搜索救援队search warrant a warrant giving legal permission to the police to search a house etc. 搜索票 搜查证in search of searching for. We went in search of a restaurant. 尋找 寻找searchlight
searchlight, device, usually swiveled, using a lens and reflecting surface to direct a powerful beam of light of nearly parallel rays. In 1892 such apparatus was used along the English Channel in coastal defense and later, in the South African War, as an aid to infantry movement. It was also used to illuminate vessels in order to identify them and for possible bombardment, for dazzling the enemy, for illuminating the coast in an attack, and to locate targets, at sea or ashore, for the guns. After 1900 acetylene came into use as an illuminant, and in 1916 Edison invented a portable electric apparatus powered by storage batteries. During World War I powerful searchlights mounted on trucks and railroad cars came into use. The electric arc was generally employed after the American inventor E. A. Sperry introduced (1915) his high-intensity arc lamp based on principles that still predominate in modern searchlight equipment. Searchlights of 1,500 million candle power, visible for 150 mi (241 km), have become common. Revolving searchlights as beacons spaced along air routes have yielded to radio beacons. Similarly, the use of powerful lights coordinated with antiaircraft guns developed during World War II has been outmoded by radar-directed artillery. Small searchlights, which are usually employed for signaling, use incandescent lamps. These lamps are often of the quartz-halogen type in which the filament is run at very high temperatures.searchlight[′sərch‚līt] (optics) A type of light projector designed to produce a beam of high intensity and minimum divergence; it usually employs a specular paraboloidal reflector to produce parallel rays from a light source located at the focus. searchlight1. a device, consisting of a light source and a reflecting surface behind it, that projects a powerful beam of light in a particular direction 2. the beam of light produced by such a device LegalSeesearchSee SRCHLT
See SRCHLTsearchlight
Words related to searchlightnoun a light source with reflectors that projects a beam of light in a particular directionRelated Words- Fresnel lens
- light source
- light
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