| 单词 | screen |
| 释义 | screen n. & v. --n 1. a fixed or movable upright partition for separating, concealing, or sheltering from draughts or excessive heat or light. 2. a thing used as a shelter, esp. from observation. 3. a a measure adopted for concealment. b the protection afforded by this (under the screen of night). 4. a a blank usu. white or silver surface on which a photographic image is projected. b (prec. by the) the cinema industry. 5. the surface of a cathode-ray tube or similar electronic device, esp. of a television, VDU, etc., on which images appear. 6. = sight-screen. 7. = WINDSCREEN. 8. a frame with fine wire netting to keep out flies, mosquitoes, etc. 9. Physics a body intercepting light, heat, electric or magnetic induction, etc., in a physical apparatus. 10. Photog. a piece of ground glass in a camera for focusing. 11. a large sieve or riddle, esp. for sorting grain, coal, etc., into sizes. 12. a system of checking for the presence or absence of a disease, ability, attribute, etc. 13. Printing a transparent finely-ruled plate or film used in half-tone reproduction. 14. Mil. a body of troops, ships, etc., detached to warn of the presence of an enemy force. --vtr. 1. (often foll. by from) a afford shelter to; hide partly or completely. b protect from detection, censure, etc. 2. (foll. by off) shut off or hide behind a screen. 3. a show (a film etc.) on a screen. b broadcast (a television programme). 4. prevent from causing, or protect from, electrical interference. 5. a test (a person or group) for the presence or absence of a disease. b check on (a person) for the presence or absence of a quality, esp. reliability or loyalty. 6. pass (grain, coal, etc.) through a screen. Phrases and idioms screen printing a process like stencilling with ink forced through a prepared sheet of fine material (orig. silk). screen test an audition for a part in a cinema film. Derivatives screenable adj. screener n. Etymology: ME f. ONF escren, escran: cf. OHG skrank barrier |
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