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单词 gust front
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gust front
gust front n. Meteorology a boundary between a region of gusty winds and the surrounding air; spec. the leading edge of the region of cool, gusty surface winds produced by thunderstorm downdraughts, typically associated with a sudden change in pressure and temperature drop; cf. outflow boundary n. at outflow n. and adj. Compounds.
ΚΠ
1933 Q. Jrnl. Royal Meteorol. Soc. 59 370 The structure of gust fronts is more clearly marked in the free air than within 50ft. of the surface.
1983 Pop. Sci. May 80/2 It was generally assumed that a gust front had brought the plane down.
2008 Roanoke (Virginia) Times (Nexis) 11 July b1 Wednesday's storm may have involved both microbursts and a gust front.
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