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单词 perturbation
释义
perturbation
noun
uk
/ˌpɜː.təˈbeɪ.ʃən/us
/ˌpɝː.t̬ɚˈbeɪ.ʃən/

perturbationnoun(WORRY)

[U]formal
worry
担心；烦恼
SMART Vocabulary: related words and phrases
Anxiety and worry - general words
  • agita
  • agitation
  • angst
  • anti-stress
  • apprehension
  • jitters
  • nerve
  • nervousness
  • oppression
  • overwork
  • panic attack
  • strain
  • tension
  • the collywobbles
  • the heebie-jeebies
  • tizzy
  • trepidation
  • uneasiness
  • vexation
  • willie
See more results »

perturbationnoun(CHANGE)

[CorU]physicsspecialized
asmallchangein theregularmovementof anobject:
摄动；扰动
Perturbations in theorbitof theplanetUranusledto thediscoveryofNeptunein 1846.天王星轨道的摄动使人们于1846年发现了海王星。
SMART Vocabulary: related words and phrases
Shaking, swinging and vibrating
  • brandish
  • flap
  • flourish
  • fluffsomethingup
  • jitter
  • joggle
  • pulse
  • reverberate
  • rocky
  • shimmy
  • stir
  • stirsomethingup
  • sweep
  • teeter
  • thrashing
  • throbbing
  • wag
  • wobbler
  • wobbly
  • worry atsomething
See more results »
(Definition ofperturbationfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

Examplesofperturbation

perturbation
Unfortunately, these perturbations can not be joined continuously to those of the interaction region.
From theCambridge English Corpus
Statistical mechanical implications of these perturbations are described.
From theCambridge English Corpus
Change in the self-system is explained by perturbations in the life of the individual.
From theCambridge English Corpus
Our computations give some evidence that these travelling waves are stable even to large perturbations.
From theCambridge English Corpus
In this case a perfect hexagonal pattern, which is stable under symmetric perturbations, is perturbed asymmetrically.
From theCambridge English Corpus
If, for example, the attractor of the parabolic limit equation is chaotic, then trajectories are sensitive to perturbations.
From theCambridge English Corpus
In experiments and numerical simulations, stable spatially-periodic patterns typically arise through small, localized perturbations of the underlying unstable background state.
From theCambridge English Corpus
Our stability analysis, for perturbations of localized solutions, typically leads to singularly perturbed eigenvalue problems with spatially inhomogeneous coefficients that are difficult to study analytically.
From theCambridge English Corpus
An attractor state is insensitive to (small) perturbations.
From theCambridge English Corpus
The situation in which we apply bump perturbations will often be of the following type.
From theCambridge English Corpus
We are far from understanding how these abnormalities co-operate during tumourigenesis and how such perturbations in cell cycle control could be used clinically.
From theCambridge English Corpus
We now describe the sequence of perturbations that produces the desired metric.
From theCambridge English Corpus
Unlike the smooth expanding maps treated just above, such maps are in general not structurally or measure-theoretically stable with respect to deterministic perturbations.
From theCambridge English Corpus
Moreover, we obtain sharp spectral stability results for deterministic and random perturbations.
From theCambridge English Corpus
In the third flow region, behind the stator there is uniform axial steady flow and zero swirl with downstream-propagating acoustic and vorticity perturbations.
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.

Collocationswithperturbation

perturbation

These are words often used in combination withperturbation.

Click on a collocation to see more examples of it.

environmental perturbation
Inconsistency is the result of environmental perturbation, habitat change or variability in the behaviour of host populations, which may in turn reflect environmental variability.
From theCambridge English Corpus
gravitational perturbation
Under the action of radiation pressure, and with the aid of planetary gravitational perturbations, a proportion these missives are ejected from the solar system.
From theCambridge English Corpus
perturbation analysis
The perturbation analysis tends to be an elegant, though computationally demanding method.
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/perturbation##
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更新时间：2024/12/28 1:34:06