| 释义 |
transonic, a.|trɑːnˈsɒnɪk, træn-|
Also trans-sonic.
[f. trans- 3 + sonic a., after supersonic, ultrasonic.]
Pertaining to, involving, capable of, or designating speeds close to that of sound, at which some of the flow round a body is supersonic and some subsonic and there are characteristic changes in the behaviour of an aircraft.
1946Britannica Bk. of Year (U.S.) 833/2 Trans-sonic, speeds ranging from 550 to 760 m.p.h. 1946Jrnl. R. Aeronaut. Soc. L. 436/1, I propose to say a little about ‘supersonic’ aerodynamics first, and then to return to the so-called ‘transonic’ region, which presents the most difficult problem of all. 1948‘N. Shute’ No Highway xii. 294 The forces on the structure [of an aircraft] were still very much a matter of guesswork in the trans-sonic range. 1966New Scientist 20 Jan. 135/1 A critical phase is reached as the aircraft goes ‘transonic’; that is, as it accelerates through the speed band from just below to just above the speed of sound. 1977Jrnl. R. Soc. Arts CXXV. 347/1 Notable examples [of development] since World War II have been jet propulsion, transonic and supersonic aerodynamics, [etc.]. |