| 释义 |
synchronizer|ˈsɪnkrənaɪzə(r)|
One who or that which synchronizes; spec. a device for synchronizing clocks; also, an apparatus for causing two electric machines to go at the same speed, or for indicating the agreement or difference of their speeds. Also in other technical senses, esp. in Cinematogr. and Photogr. Cf. synchronize v. 2 c.
1883Ogilvie (Annandale), Synchronizer..one who or that which synchronizes; a contrivance for synchronizing clocks. 1916Times 20 May 7/3 At luncheon time to-day the professional clock winders and synchronizers will start the work of advancing by an hour the hands of the clocks under their control. 1924S. R. Roget Dict. Electr. Terms 253/2 Synchroniser. Apparatus for indicating whether two alternating current machines or circuits are in synchronism. 1931B. Brown Talking Pictures i. 5 The synchronizer itself consisted of a box having a transparent disc, bearing an indicating spot, and coupled by gearing to the mechanism of the cinema projector. 1940F. J. Mortimer Wall's Dict. Photogr. (ed. 15) 314 A sharp distinction should be drawn between the flashgun and the simpler so-called ‘synchronisers’ which open the shutter, set at ‘Bulb’ or a slow snapshot speed, before the flash begins, and allow it to remain open till the flash is over. 1949Proc. Inst. Mech. Engin., Automobile Div., 1947–8 III. 98/2 Constant load synchronizers are generally used, except for Vauxhall..who use the baulked synchronizer. 1957Manvell & Huntley Film Music i. 17 Throughout the silent period various gramophone synchronizers were developed for use with films. 1970K. Ball Fiat 600, 600D Autobook vi. 53/1 This shaft carries the fourth-speed driven gear and synchronizer ring. 1972Times Educ. Suppl. 21 July 27 The sound..is first recorded in the usual way. The tape is then passed through the recording head of the synchronizer... Subsequently, when the tape is played back, the control pulses are passed..to the projector.., and each automatically initiates a change of slide at the predetermined point. |