| 释义 |
resonate, v.|ˈrɛzəneɪt|
[f. L. resonāre to resound: see -ate3.]
1. intr. To produce or exhibit resonance. Also fig.
1873S. Taylor Sound & Music (1896) 117 The wires of the corresponding note will of course resonate with it. 1896Curtis Voice Building (1901) 140 In exit the tone should be allowed to resonate in all the natural acoustic cavities. 1946Physical Rev. LXIX. 37 It [sc. a resonant cavity] was adjusted to resonate at about 30 mc/sec. 1955R. S. H. Boulding Radar Pocket Bk. vi. 72 An artificial line can be charged from an a.c. supply without a rectifier by making a choke in the charging circuit resonate, at the supply frequency, with the capacitance of the line. 1956Jrnl. Chem. Physics XXIV. 468/1 In NMR spectra nuclei which give signals at the same applied field or resonate with the same Larmor frequency may be considered magnetically equivalent. 1976Publishers Weekly 27 Sept. 80/1 Prose..resonating with the illustrations.
b. spec. in Chem. To exhibit mesomerism (cf. resonance 1 d (ii)). Const. among or between different structures, as if a real physical alternation were occurring.
1933Pauling & Wheland in Jrnl. Chem. Physics I. 369 In the first step the C{b1}C bond breaks and there are formed two phenyl-methyl radicals, which however can resonate between only the structures A and B of Fig. 3. 1957G. E. Hutchinson Treat. Limnol. I. iii. 196 The molecule resonates between the following structures. 1965G. W. Wheland Resonance in Org. Chem. i. 7 Only by exercising the utmost care in the choice of words can one avoid the appearance of implying that the molecules..are oscillating back and forth among the several structures, and hence that these structures must possess real physical significance... The common statements that the hybrid resonates among the structures and that the structures resonate with one another almost unavoidably give this quite erroneous impression. 1976Sci. Amer. Nov. 59/1 Perhaps the baryon resonates between these configurations, much as the benzene ring resonates between its various possible structures.
2. trans. To act as a resonator for; to amplify by resonance.
1904Physical Rev. XVIII. 231 Having the radiating aërial resonating the primary circuit, it is now necessary to have a second primary circuit in tune with the first. 1975Sci. Amer. July 48/2 Signals become convolved when sounds are reverberated or resonated or, in the case of photographs, when images are blurred.
Hence ˈresonating ppl. a.; resonating chamber = resonator 2.
1873S. Taylor Sound & Music (1896) 135 A reed does not need to be associated with a resonating column in order to produce a musical sound. 1912Chem. Abstr. VI. 3220 An extensive research on the properties and behavior of resonating gas mols. 1933Jrnl. Chem. Physics I. 611 A negative carbon atom, with one unshared and three shared electron pairs, occurs rather often in resonating structures, as in carbon monoxide, [etc.]. 1938Resonating chamber [see resonator 2 b]. 1959E. Pulgram Introd. Spectrogr. Speech vii. 55 The resonating tuning fork continues to operate for a while after the struck fork has been stopped. 1968B. M. H. Strang Mod. Eng. Structure (ed. 2) 35 The character of the sound produced can be varied over a considerable range by changing the shape of the resonating chambers. 1974D. M. Adams Inorg. Solids vii. 230 In PbI2, with its inert pair of s-electrons, bonding is via two resonating p-electrons. 1974R. C. Hibbeler Engin. Mech. xxii. 958 Resonating vibrations can cause tremendous stress and rapid failure of parts. |