| 释义 |
superˈsonics, n. pl. (const. as sing.)
[f. prec.: see -ic 2.]
The science of sound waves or vibrations with frequencies greater than those audible to the human ear or greater than 20,000 Hz.
1925Nature 9 May 690/1 The method adopted to measure the vibrational energy in the water at the high frequencies used in supersonics is interesting. 1952Chambers's Jrnl. June 363/1 The urge to explore supersonics afresh arose from the infestation of reservoirs by seagulls... Scientists have been..studying the artificial application of supersonics, and..have evolved a method of producing a high-intensity beam of sound of any desired frequency. 1977Jrnl. R. Soc. Arts CXXV. 361/1 Supersonics has a place by the end of the century. |