| 单词 | clapper board |
| 释义 | > as lemmasclapper board d. Cinematography. Usually plural, or attributive, as clapper board (see quots.). See also clapper-boy n. at Compounds 2. ΘΚΠ society > leisure > the arts > performance arts > cinematography > filming > filming equipment > [noun] > clappers clapper board1940 clapboard1959 1940 Chambers's Techn. Dict. 166/1 Clappers, a device, usually consisting of two hinged pieces of board, which is closed sharply in front of a camera in sound-film production, thus providing synchronisation indication on the picture-track and the sound-track. 1959 Elizabethan June 24/2 This board is called the ‘clapper board’, because of a small piece of wood which is slapped down and makes a noise on the sound track. < as lemmas |
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