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单词 echolocate
释义

> as lemmas

ˈecholocate
ˈecholocate v.
ΘΚΠ
the mind > attention and judgement > discovery > instrument for detection > of instrument, etc.: detect [verb (transitive)] > locate or track
radiolocate1941
echolocate1944
to lock on to ——1945
radar-track1948
acquire1953
echo-sound1953
1944 D. R. Griffin in Science C. 590/1 A radio signal is sent out from the airplane and electronic devices measure the time required for this signal to be reflected back... Finally we have radar, a refinement of the radio altimeter so beautifully perfected that it can echolocate airplanes at great distances by sending out radio waves and picking up the reflected energy returning from the distant aircraft.
1959 Observer 14 June 5/4 Asdic, another wartime device used for echolocating underwater objects by ultrasonic vibrations, has given us more knowledge about whales.
extracted from echolocationn.
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更新时间:2024/12/25 10:28:57