| 单词 | pressure jump |
| 释义 | > as lemmaspressure jump pressure jump n. a sudden increase in pressure over a short distance; (Meteorology) a mobile zone of atmospheric disturbance characterized by a steep pressure gradient and usually marking a discontinuity in the height of an inversion layer. ΘΚΠ the world > the earth > weather and the atmosphere > movements and pressure conditions > [noun] > atmospheric pressure > zone with steep gradient pressure jump1949 1949 Proc. National Acad. Sci. U.S.A. 35 208 In equation (1) w is proportional to the slope..of the lifting surface and p is the pressure jump across the lifting surface. 1950 M. Tepper in Jrnl. Meteorol. 7 23/1 The leading edge of this pressure gradient, which shall be referred to as the pressure jump, is clearly defined on the maps, seems to undulate rather violently, and moves in a non-uniform manner. 1967 Oceanogr. & Marine Biol. 5 42 Sudden rises in sea level..have been experienced occasionally at coastal locations with the passage over the sea of a moving squall line or pressure jump. 2003 Daily Mail (Nexis) 29 July 57 As it is heated, the air expands explosively, compressing the region immediately around the lightning. This ‘pressure jump’ creates sounds waves. < as lemmas |
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