单词 | shock wave |
释义 | shock waven. a. A disturbance that travels through a fluid as a narrow region in which there is a large, abrupt change in pressure and related quantities, esp. one separating regions of subsonic and supersonic fluid flow such as is created by an object moving faster than sound or by an explosion; loosely, any pressure wave of large amplitude. ΘΚΠ the world > matter > gas > air > [noun] > air-wave > large pressure wave shock wave1907 blast1923 air blast1940 the world > matter > physics > mechanics > types of motion > [noun] > wave > types of wave long wave1792 internal wave1804 stationary wave1833 solitary wave1838 standing wave1845 travelling wave1845 pressure wave1871 ripple1871 surface wave1887 sine wave1893 Rayleigh wave1903 shock wave1907 spherical wave1907 Love wave1924 bow shock1938 Rossby wave1951 soliton1965 1904 Sci. Abstr. A. 7 646 Quasi-waves of shock propagating a dilatation in accordance with Hugoniot's law.] 1907 Chem. Abstr. 1 1470 The explosive wave is a shock wave accompanied by a decided combustion. 1931 Proc. National Acad. Sci. U.S.A. 17 534 Let us regard a plane discontinuity or ‘shock wave’ from the point of view of the observer moving with it, so that the shock wave will appear to us stationary. 1945 Times 8 Nov. 2/2 When the oncoming aeroplane is travelling at, say, 600 m.p.h. or more the steadiness of the air-flow over the wing then breaks down with the result that what is known as a shock-wave occurs at the thickest part of the wing. 1950 Sci. News 15 Pl. 5 (caption) The segmented appearance of the flame is due to the shock wave which is formed in the jet as it leaves the nozzle and which is reflected to and fro within the jet. 1958 Notes & Queries CCIII. 139/1 Aside from other factors in nuclear explosions, the shock-wave, or blast, is possibly the greatest source of danger. 1973 C. Mason Hostage v. 65 The building was meanwhile hit by a shockwave so severe it felt like an earthquake. 1979 Jrnl. Royal Soc. Arts 127 403/1 A small explosive charge is detonated in the ground and the resulting shock waves picked up by sensitive microphones called geophones. b. figurative. ΘΚΠ the mind > emotion > suffering > state of being upset or perturbed > state of being shocked > [noun] > causing shock shock wave1969 1969 Harper's Mag. Dec. 125 The last writer who sent shock waves through Western literature. 1974 I. Murdoch Sacred & Profane Love Machine 145 The shock wave had not yet really come... Awful grief and pain hovered somewhere near to her. 1979 P. Harcourt Sleep of Spies i. iv. 56 The question caused shock waves round the room. This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2019). < |
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