| 单词 | radio detection and ranging |
| 释义 | radio detection and ranging (once / 11819311 pages) n WORD FAMILY radio detection and ranging USAGE EXAMPLESIn 1940 the US Navy coined the term radar to describe “radio detection and ranging”. Economist(Mar 14, 2013) n measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects Syn|Hypo|Hyper microwave radar, radar, radiolocation Doppler radar radar that uses the Doppler shift to measure velocity early warning radara radar that is part of an early warning system 3d radar, three-dimensional radarradar that will report altitude as well as azimuth and distance of a target weather radarradar that is able to detect clouds and precipitation measuring device, measuring instrument, measuring system instrument that shows the extent or amount or quantity or degree of something |
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