| 词汇 | perturbation |
| 释义 | perturbation noun uk /ˌpɜː.təˈbeɪ.ʃən/ us /ˌpɝː.t̬ɚˈbeɪ.ʃən/ perturbationnoun (WORRY)[ U ]formal worry担心；烦恼 Anxiety and worry - general words agita agitation angst anti-stress apprehension break out in a cold sweat fluster heebie-jeebies jitters nerve nervousness oppression panic attack strain tension tizzy to someone's consternation trepidation uneasiness willie perturbationnoun (CHANGE)[ C or U ] physics specialized a small change in the regular movement of an object: 摄动;扰动 Perturbations in the orbit of the planet Uranus led to the discovery of Neptune in 1846.天王星轨道的摄动使人们于1846年发现了海王星。 Shaking, swinging and vibrating brandish earth-shaking flap flappy flourish fluff fluff something up reverberative ripple rock-a-bye shake out shakily shakiness sway thrash tremulously vibrate vibration vibratory waggle Examples of perturbationperturbation Unfortunately, these perturbations can not be joined continuously to those of the interaction region. Statistical mechanical implications of these perturbations are described. Change in the self-system is explained by perturbations in the life of the individual. Our computations give some evidence that these travelling waves are stable even to large perturbations. In this case a perfect hexagonal pattern, which is stable under symmetric perturbations, is perturbed asymmetrically. If, for example, the attractor of the parabolic limit equation is chaotic, then trajectories are sensitive to perturbations. In experiments and numerical simulations, stable spatially-periodic patterns typically arise through small, localized perturbations of the underlying unstable background state. 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. An attractor state is insensitive to (small) perturbations. The situation in which we apply bump perturbations will often be of the following type. We are far from understanding how these abnormalities co-operate during tumourigenesis and how such perturbations in cell cycle control could be used clinically. We now describe the sequence of perturbations that produces the desired metric. Unlike the smooth expanding maps treated just above, such maps are in general not structurally or measure-theoretically stable with respect to deterministic perturbations. Moreover, we obtain sharp spectral stability results for deterministic and random perturbations. In the third flow region, behind the stator there is uniform axial steady flow and zero swirl with downstream-propagating acoustic and vorticity perturbations. See all examples of perturbation 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. Collocations withperturbationperturbationThese are words often used in combination with perturbation. 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. 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. perturbation analysis The perturbation analysis tends to be an elegant, though computationally demanding method. 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. See all collocations with perturbation |
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