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单词 spot map
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spot map
spot map n. (a) Astronomy a map or diagram showing the distribution of sunspots (or similar regions on other stars); (b) gen. a map in which spots or points indicate individual locations or occurrences of something.
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1870 M. Williams Fuel of Sun vi. 47 Comparisons of Mr Carrington's spot-maps and the Kew pictures with positions of the planets.
1884 Lancet 6 Sept. 435/2 The part referring to the ‘spot maps’ I have made was left out in that abstract.
1901 L. C. Parkes & H. R. Kenwood Hygiene & Public Health xi. 666Spot maps’—maps of a district, on which the deaths or cases of various infectious diseases are spotted out—furnish valuable graphic expressions of any grouping.
1973 J. J. McKelvey Man against Tsetse ii. 81 In three months the commission acquired 460 collections of flies and made a spot map of tsetse locations.
1979 Dictionaries 1 36 The spot maps will be effectively utilized to show the distribution of a single [dialectal] term.
2004 G. Rüdiger & R. Hollerbach Magnetic Universe iv. 106 (caption) FK Com light-curves and spot maps for 1990-1993.
2007 D. M. Dwyer & C. Groves in K. E. Nelson & C. F. Masters Williams Infectious Dis. Epidemiol. (ed. 2) v. 164 Spot maps of cases by residence, site of care, or location in a facility can help explain the occurrence of cases.
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