| 单词 | heat barrier |
| 释义 | > as lemmasheat barrier heat barrier n. Aeronautics the limitation on the speed of aircraft, etc., due to heating by air friction. ΘΚΠ society > travel > air or space travel > specific movements or positions of aircraft > aerodynamic forces and concepts > [noun] > limitations on speed sound barrier1939 thermal barrier1951 heat barrier1953 1953 H. Haber Man in Space 66 The designers of the Sky-rocket had to be on guard against not only the sonic barrier. With its high rate of speed their craft might run into an obstacle more serious than buffeting shock waves: the heat barrier. 1953 Sci. Amer. Dec. 80/1 This is the heat barrier: the heating of a plane by the friction and piling up of air on aircraft surfaces at supersonic speeds. 1954 Times 5 Mar. 11/5 They might well find that [the ultimate limits of manned aircraft] were very high and that in the same way as the sound barrier had been overcome the problems of the heat barrier would be solved also. 1957 Ann. Reg. 1956 346 Problems of producing aircraft for still higher speeds, with special attention for the next main obstacle—the heat barrier. 1970 J. Chaplin Wings & Space 146/1 There is no way to break through the heat barrier as there is with sound. < as lemmas |
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