| 释义 |
equalizer|ˈiːkwəˌlaɪzə(r)|
[f. as prec. + -er1.]
a. One who, or that which, makes equal; spec. an appliance for equalizing the speed of a machine, or the power used to drive it.
1792F. Burney Diary (1842) V. 351 [The Duke's] deportment is quite noble and in a style to announce conscious rank even to the most sedulous equaliser. 1792Sir B. Thompson in Phil. Trans. LXXXII. 79 The ocean may be considered as the great reservoir and equalizer of heat. 1853Lewes Goethe I. 233 The forest is the great equaliser of temperature in Nature. 1870Ruskin Lect. Art i. 5 Education..is not the equalizer, but the discerner of men. 1874Knight Dict. Mech., Equalizer, an evener or whiffletree to whose ends the swingle-trees or single-trees of the individual horses are attached. 1882Bazaar, Exch. & M. 15 Feb. 174 The Otto Power Equaliser.
b. Electr. A passive network designed to modify the frequency response of a circuit (as a transmission line or an amplifier), esp. in order to compensate for frequency-dependent attenuation or phase shifts.
1928Sterling & Kruse Radio Man. vi. 222 The equalizer is employed to correct the frequency characteristic of the telephone line by forming a shunt which affords a variable impedance for different frequencies. 1930Bell Syst. Techn. Jrnl. IX. 587 Since the amplifier has a flat gain characteristic, an attenuation equalizer is called for to correct the distortion introduced by the cable. 1943F. E. Terman Radio Engineers' Handbk. iii. 244 A phase equalizer is an all-pass filter designed to introduce a desired phase shift as a function of frequency in the load current. 1958N.Z. Listener 26 Sept. 9/2 Here also are the variable equalisers that compensate for the frequency losses in the lines to the recording centre from outside points. All the lines come to the central rack and the equalisers there, except the fixed programme lines which go to fixed equalisers in the main equipment room. 1958[see prec. 7 c].
c. Assoc. Football. A goal that equalizes (cf. equalize v. 4 b).
1930Daily Express 9 Sept. 12/2 Wednesday were playing very well..and Rimmer headed the equaliser just inside half an hour. 1960Times 25 Jan. 16/5 Jackson scored a scrambling equalizer.
d. A revolver. Also, a cosh; (occas.) some other weapon. slang (orig. U.S.).
1931D. Runyon Guys & Dolls (1932) iv. 89 He outs with the old equalizer and starts blasting away. 1954Wodehouse Jeeves & Feudal Spirit xvi. 162, I reached a hand into my pocket and got a firm grasp on the old Equalizer. 1958B. Hamilton Too Much of Water xi. 252, I..got..my little equalizer... I gave him a very sound bang, and he just slithered down. 1961I. Jefferies It wasn't Me! xi. 157 He just thought anybody running about with a nasty look and an equalizer was a foreigner. |