| 单词 | pressure pattern | 
| 释义 | > as lemmaspressure pattern   pressure pattern  n. a pattern of prevailing atmospheric pressures. ΘΚΠ the world > the earth > weather and the atmosphere > movements and pressure conditions > 			[noun]		 > atmospheric pressure > pattern of prevailing pressures pressure pattern1946 1946    Sci. News Let. 2 Nov. 278/2  				A new technique, ‘pressure pattern flying’, is now available to air pilots on the Atlantic route from Europe. 1954    N.Y. Times 6 June  ii. 31/2  				During the past eight years Trans World Airlines pilots flying over the Atlantic..have mastered the techniques of getting maximum range from their planes by flying ‘pressure patterns’. 1994    Air & Space Technol. Nov. 35/3  				What is called the semi-annual oscillation usually dominates the pressure patterns in the middle and high latitudes of the southern hemisphere. < as lemmas  | 
	
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