| 单词 | variable geometry |
| 释义 | > as lemmasvariable geometry variable geometry n. a configuration of component parts that can be varied; spec. in Aeronautics = variable sweep n.; frequently attributive. ΘΚΠ the world > relative properties > number > geometry > [noun] > branches of planimetrya1393 conic?a1560 helicosophy1570 stereometry1570 spheric1660 planometry1669 mensuration1704 polygonometry1791 analytical geometry1802 isoperimetry1811 analytic geometry1817 algebraic geometry1821 coordinate geometry1837 non-Euclidean geometry1872 differential geometry1877 pangeometry1878 projective geometry1878 metageometry1890 Riemann geometry1895 variable geometry1957 society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > [noun] > plane or aerofoil > wing > sweep sweep1914 sweepback1914 sweep-forward1932 variable geometry1957 1957 Jrnl. Brit. Interplanetary Soc. 16 166 The design characteristics of such gliders may include..variable geometry lifting surfaces, to be very thin at high speeds and to have good lift properties at landing. 1963 Times 10 June 10/1 He believed that variable geometry would give a better aircraft. 1969 Sci. Jrnl. Apr. 48/1 The wing surface [of a bat's wing] is an elastic membrane of skin stretched between the four long fingers, with at least 11 movable joints in each wing. This very variable geometry permits a high degree of manoeuvrability and control. 1970 New Scientist 30 July 236 (caption) These drawings show the variable geometry of the air intake on the Olympus 593-3B engine. 1977 P. Way Super-Celeste 39 The rival to the Super-Celeste, the variable geometry wing F-24, was airborne again. < as lemmas |
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