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Radar    音标拼音: [r'ed,ɑr]
n. 雷达,电波探测器

雷达,电波探测器

radar
雷达

radar
n 1: measuring instrument in which the echo of a pulse of
microwave radiation is used to detect and locate distant
objects [synonym: {radar}, {microwave radar}, {radio detection
and ranging}, {radiolocation}]

radar \ra"dar\ (r[=a]"d[aum]r), n. [acronym from RAdio Detection
And Ranging.]
1. An electronic device designed to detect objects at a
distance, and determine their distance from the device, by
transmitting a pulse of radio waves and measuring the time
required for the echo of the pulse to return to the
emitting device; as, the radar showed a plane approaching
rapidly. For more information of radar, see the article
What is Radar?. [acronym]
[PJC]

2. The method of detecting objects, finding their distance,
or determining their speed, by use of a radar[1] device;
as, modern radar can detect objects as small as raindrops.
[PJC]

92 Moby Thesaurus words for "radar":
AA radar, AFC, AFC mixer, CRT, CW oscillator, MAD radar, Navaglobe,
Oboe, TR switch, TR unit, VAR, Volscan, altimeter, amplifier,
analyzer, astronavigation, automatic electronic navigation,
automation, avionics, cascade screen, cathode-ray tube,
celestial navigation, chronometer, coastwise navigation, consolan,
dead reckoning, demodulator, detector, discriminator,
early-warning radar, electron microscopy, electron optics,
electron physics, electronic engineering, electronic navigation,
electronics, electrophysics, fix, frequency meter,
gun-directing radar, hard-tube pulser, indicator,
interception radar, limiter, line of position, local oscillator,
long-range radar, loran, magnetron, microwave mixer, mixer,
modulator, navar, navigation, network pulser,
omnidirectional range, omnirange, oscillator, overlapping,
panoramic radar, photoelectricity, pilotage, plane sailing,
point-to-point navigation, potentiometer, pulse generator,
radar telescope, radio, radio beacon, radio navigation, radionics,
range-sweep amplifier, range-sweep generator, receiver, screen,
second detector, sextant, shoran, sofar, sonar,
square-wave generator, synchronizer, tables, tacan, teleran,
television, timing unit, tracker, transistor physics, transmitter,
trigatron, visual-aural range

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    Lat: 47 93633°N Lon: 122 087°W Elev: 184 0ft A 30 percent chance of rain, mainly after 5am Cloudy, with a low around 49 Light and variable wind Rain High near 60 Calm wind Chance of precipitation is 80% New precipitation amounts of less than a tenth of an inch possible Rain Low around 49 Light and variable wind
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    Current 7-day weather forecast, weather alerts, and weather radar for Cottage Lake, Washington All times shown in your local timezone Loading map including targeted forecasts at the time of your arrival to each point!
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