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单词 ultrasonics
释义

ultrasonicsn.

/ʌltrəˈsɒnɪks/
Etymology: < ultrasonic adj.: see -ic suffix 2.
a. With plural agreement. Ultrasonic waves; ultrasound.
ΘΚΠ
the world > physical sensation > hearing and noise > thing heard > [noun] > sound > supersound or ultrasound
supersound1920
ultrasound1923
ultrasonics1924
the world > matter > physics > science of sound > vibration > [noun] > above human range
ultrasound1923
ultrasonics1924
1924 Ann. Rep. National Res. Council Canada 23 Ultra Sonics are sound vibrations of a pitch higher than those which are audible.
1931 Nature 21 Feb. 284/2 Prof. F. L. Hopwood discussed ultra-sonics or inaudible sounds.
1957 A. C. Clarke Deep Range i. 10 Sub 5 was still close enough to the mother ship for radio to work, but before long he'd have to switch to the ultrasonics.
1960 New Biol. 31 32 The bacteria which have been treated by ultrasonics..cannot multiply any more.
1972 R. E. Ornstein Psychol. of Consciousness (1975) ii. 19 We normally consider that our senses are the ‘windows’ to the world... But such a view..is not entirely true, for a primary function of sensory systems taken as a whole is to discard ‘irrelevant’ information, such as X-rays, infrared radiation, or ultrasonics.
b. With singular agreement. The branch of science and technology concerned with the study and use of ultrasonic waves.
ΘΚΠ
the world > matter > physics > science of sound > vibration > [noun] > above human range > science of
supersonics1920
ultrasonics1940
1940 Nature 3 Aug. 171/1 On May 21, Dr. R. W. Boyle received the Flavelle Medal of the Society..in recognition of his researches, particularly on the development of ‘Asdics’ and his work on ultrasonics.
1959 Sunday Times 21 June 3/2 Ultrasonics has..been established for a number of years in submarine detection, underwater signalling, echo~sounding, fish location, flaw detection in metals and in many fields of industrial measurement and control.
1977 Time 28 Nov. 56/2 Since the original development of the technique for cardiology in the 1950s, ultrasonics has been used to explore other areas of the body, notably, the developing fetus in the mother's uterus.
This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2019).
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n.1924
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