| 单词 | aerodynamics | 
| 释义 | aerodynamicsn. Engineering.  1.  With singular and (rare) plural agreement. The branch of science that deals with the properties of air and other gases in motion and the interaction between a gas and objects moving through it. ΘΚΠ the world > matter > physics > mechanics > dynamics > fluid dynamics > 			[noun]		 > aerodynamics aerodynamics1837 aerophysics1897 1837    Pop. Encycl. I. 45  				Aerodynamics, a branch of aerology, or the higher mechanics, which treats of the powers and motion of elastic fluids. 1851    Encycl. Americana 		(new ed.)	 I. 79/1  				Aërodynamics are often explained in connexion with hydrodynamics. 1868    Chambers's Encycl. I. 56  				One of the most important inquiries in Aerodynamics is the resistance offered to a body moving in air, or—which is the same thing—the pressure exerted by air in motion upon a body at rest. 1916    W. A. White Mechanisms of Char. Formation iii. 40  				If we keep our eyes open we will sooner or later see a berg going in the face of the wind and so apparently putting at naught all the laws of aërodynamics. 1946    Jrnl. Royal Aeronaut. Soc. 50 436/1  				The problems of aerodynamics at speeds well in excess of that of sound are in some respects much simpler than those quite near the sonic speed. 1991    Bicycling Feb. 52/1  				Breakthroughs in aerodynamics will allow every fitness-minded cyclist to cut through the wind like a pencil point. 2007    Adv. Engin. Software 38 182/1  				Numerical simulations are now used in fields as diverse as..sail aerodynamics, electronics and medicine.  2.  With plural agreement. The aerodynamic properties of something. ΚΠ 1945    V. Stefansson Arctic Fact & Fable iii. 66  				The densest fogs, sticky snow and sleety rain..tend to build up ice on wings and propellers in such a way that the aerodynamics of the plane are changed. 1952    J. K. Galbraith Amer. Capitalism i. 1  				It is told that such are the aerodynamics and wing-loading of the bumblebee that, in principle, it cannot fly. 1990    C. Allen Savage Wars of Peace 		(1991)	 58  				You came down virtually vertically, which is not a good thing for the aerodynamics of a helicopter. 1997    J. Vornholt Mind Meld ix. 148  				Spock was able to contribute some data on the aerodynamics of kites. This entry has been updated (OED Third Edition, June 2008; most recently modified version published online December 2021). <  | 
	
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