| 释义 |
ˈpile-up
[f. vbl. phr. to pile up: see pile v.2 1 a, e.]
1. A crash or collision, often involving several vehicles; a vehicle that has been involved in a crash. Also fig.
1929Papers Mich. Acad. Sci., Arts & Lett. X. 314 Pile-up, a crash; a smash. 1945Richmond (Virginia) Times-Dispatch 18 Sept. 15/2 (heading) Five harness racers injured in pile-up. 1951W. Sansom Face of Innocence x. 138 We passed one pile-up with its dead-slumped radiator and its ragged little crowd. 1954L. Klemantaski tr. Fraichard's Le Mans Story v. 46 A tremendous multiple pile-up, which was visible from the grandstands, had eliminated six of the competing cars. 1957S. Moss In Track of Speed iii. 34 Both of us had escaped a pile-up of about half a dozen cars early in the race. 1968New Scientist 3 Oct. 38/2 A recent pile-up on the M1 in Bedfordshire involving 30 cars has apparently moved the Ministry of Transport to do some thinking. 1973Black Panther 31 Mar. 8/1 When the sky rocketing demands for human rights and the technology of the super-industrial state (U.S.A.) clash head on, there is a bloody social pile-up. 1973Times 1 Aug. 2/8 Three people were killed and three seriously injured in a pile-up involving three lorries and a car on the A17. 1977Belfast Tel. 27 Jan. 1/3 A woman and her nine-year-old son were killed in a traffic pile-up in Dublin today.
2. a. An accumulation; an amassing of tasks, papers, etc. Also attrib.
1945Sun (Baltimore) 14 Feb. 6/7 The Marshalls, the mid-Pacific cluster of coral pileups just above the equator. 1946Ibid. 26 Apr. 10/3 Rain slowed air traffic in and around Washington, causing a ‘pile-up’ of planes over the Washington airport. 1948M. Laski Tory Heaven viii. 119 Unless one can get each crop of débutantes married off as it comes out, we're only going to get the same pile-up all over again. 1951C. W. Mills White Collar i. iii. 39 A tangled pile-up of restrictive legislation. 1963Times 5 Feb. 13/3 More people might well be laid off in spite of the pile-up of work waiting for them. 1964Amer. Folk Music Occasional i. 88 An endless ‘pile-up song’ which begins: I had a hen, and the hen pleased me. 1964V. J. Chapman Coastal Vegetation viii. 194 The ‘pile-up’ to form our shingle beaches is due to the action of direct onshore waves. 1966Word Study Dec. 2/2 Sentences were talk-built, producing both fragments and pileups. 1968C. Helmericks Down Wild River North ii. xxiii. 368 We jumped out into the water and struggled to thrust the boat up onto a pileup of logs which was wedged there.
b. Electronics. A lack of linearity or resolution in a pulse circuit caused by the pulses arriving too rapidly.
1962C. Susskind Encycl. Electronics 18/2 Pile-up is not necessarily an excursion into a nonlinear region but the result of coupling capacitances not fully discharging after each pulse. 1973Nature 23 Mar. 270/2 This potential source of electronic pile-up background was eliminated by anti-pile-up circuitry allowing detection of the desired gamma rays in the presence of counting rates up to 105 s—1 below 1 MeV. |