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单词 undulation
释义
undulation
noun[CorU]
uk
/ˌʌn.djʊˈleɪ.ʃən/us
/ˌʌn.djʊˈleɪ.ʃən/
acontinuousup and downshapeormovement, likewaveson thesea:
波动，起伏；（声音）忽高忽低；（音量）忽大忽小；（节奏）忽快忽慢
Thefieldsriseandfallingentleundulations.田野地势平缓，略有起伏。
SMART Vocabulary: related words and phrases
Patterns and shapes
  • amorphous
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  • asymmetry
  • bossy
  • cutout
  • filigree
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  • flecked
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You can also find related words, phrases, and synonyms in the topics:

Raising and lowering
(Definition ofundulationfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

Examplesofundulation

undulation
The wave motion is then manifested by undulations of surfaces of constant density within the fluid.
From theCambridge English Corpus
Individual frequencies that are mixed together in order to create sonic masses follow reciprocal types of motion, including undulations, surges, swirls, drifts and dips.
From theCambridge English Corpus
I was especially anxious to avoid the monochrome effect of continual crooning undulations.
From theCambridge English Corpus
They envisioned a periodic alongshore current flowing over undulations in the continental shelf.
From theCambridge English Corpus
In lateralundulation, each link of the mobile mechanism faithfully follows the path taken by the leading link.
From theCambridge English Corpus
While the front steepens, the effect of frequency dispersion (or vertical acceleration) becomesincreasingly appreciable, which may lead to the development of undulations behind each crest.
From theCambridge English Corpus
At the onset of instability the unsteadiness is observable as a mereundulationof the two threads of dye of the bifid wake described above.
From theCambridge English Corpus
This is the starting point of the analogy between grasping and lateralundulation.
From theCambridge English Corpus
The country is a plain of loose red sand and has very broad, gentle undulations about 20 miles wide.
From theCambridge English Corpus
Oscillation andundulation, which are contour variations, could apply to internal, textural motions, as well as being descriptions of external contour.
From theCambridge English Corpus
These undulations may be signatures of naturally occurring structures, but contribute nothing to the ensemble average because they occur randomly in space and time.
From theCambridge English Corpus
The normal solution of (3.4) and (3.5) is then slightly perturbed to see if imposed bed undulations will grow or die.
From theCambridge English Corpus
Irregular undulations of the surface became more pronounced over the drying time.
From theCambridge English Corpus
The minimal number of required simultaneous lateral contacts is known to be 3 for snakes exercising lateralundulation.
From theCambridge English Corpus
Only if the water surface amplitude v0 turns out to be real also, will the surfaceundulationbe in phase with the bed wave.
From theCambridge English Corpus
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/undulation##
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更新时间：2024/12/28 1:31:24