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单词 auroral
释义
auroral
adjective
uk
/ɔːˈrɔː.rəl/us
/ɔːˈrɔːr.əl/
relatedto thelightin theskyof anaurora(= anaturalappearanceofcolouredlightin thesky):
an auroraldisplay
Thelightsoccurmost often inareasknownas auroralzonesnear themagneticpoles.
See
aurora
More examples
  • Wewitnessedmajorauroralactivity.
  • An auroralfootprintiscreatedby ariverofelectriccurrentflowingbetweenJupiteranditsvolcanicmoon, Io.
  • Aviolentsolarflarecausesa muchwiderauroralringthat can sometimes beseenasfaras theequator.
SMART Vocabulary: related words and phrases
The Earth & outer space - general words
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  • biosphere
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  • geophysicist
  • globe
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  • the big bang theory
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(Definition ofauroralfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

Examplesofauroral

auroral
Dynamics ofauroralbelt and polar geomagnetic disturbances.
From theCambridge English Corpus
During magnetospheric disturbed conditions, this conductivity enhancement becomes much larger, and theauroralregions move equatorward.
From
Wikipedia
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Secondly, the horizontal electric field in theauroralionosphere is also larger than that at lower latitudes.
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Growth of theauroralregion to the north was by addition of new lines developing from west to east.
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The high-levelauroralactivity may lead to formation of complex hydrocarbon molecules that are carried toward the equator.
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Ground stations to be used to study effects on radio astronomy and radar probing as well asauroralmeasurements.
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First of all, the conductivity of theauroralionosphere is generally larger than that at lower latitudes.
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Therefore, when using anauroralevent as a radio signal reflector, the reflected signal strength and signal intelligibility decreases with increasing transmitting frequency.
From
Wikipedia
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Radiation received also varies with geographical location (polar,auroralzones, mid-latitudes, and equatorial regions).
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The return current region is where electrons move upward from the ionosphere to close theauroralcurrent circuit.
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Observations included meteorology, geomagnetism,auroralphenomena, ocean currents, tides, structure and motion of ice and atmospheric electricity.
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Such vortices can be seen in aurora asauroralcurls.
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Anauroralelectrojet index (measured in nanotesla) is regularly derived from ground data and serves as a general measure ofauroralactivity.
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Electric currents originating in such way apparently giveauroralelectrons their energy.
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Wikipedia
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His research interests include plasma electrodynamics, with application to space and astrophysical plasmas, especially in the context ofauroraland magnetospheric physics.
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Wikipedia
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/auroral##
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更新时间：2024/12/28 1:18:53