perturbations

英 [ˌpɜːtə(ː)ˈbeɪʃənz]

美 [ˌpɜrtərˈbeɪʃənz]

n.  忧虑; 不安; 烦恼; 摄动; 微扰; 小变异
perturbation的复数

化学

柯林斯词典

• N-VAR （尤指不常出现的）小变化
  Aperturbationis a small change in the movement, quality, or behaviour of something, especially an unusual change.
  1. ...perturbations in Jupiter's gravitational field.
     木星重力场的微小变化
• N-UNCOUNT （某事引起的）忧虑，不安，烦恼
  Perturbationis worry caused by some event.
  1. This message caused perturbation in the Middle East Headquarters.
     这则消息在中东总部引起了不安。

双语例句

• The variation equation of the satellite orbit elements under both J2 and drag perturbations was derived based on the Gauss perturbation equation.
  基于高斯摄动方程，推导了卫星在同时考虑J2和大气摄动情况下的轨道根数变化方程。
• But smaller-amplitude perturbations develop rapidly and will soon make a great impact on the precipitation forecast.
  但是小振幅扰动的迅速发展，很快就会对降水预报造成较大的影响。
• Perturbations of Bessel sequences of order 1 in a Banach space
  Banach空间中的1阶Bessel列的扰动
• Analysis of a three-species predator-prey system with impulsive perturbations and non-monotonic functional response
  具有脉冲扰动和非单调功能反应的三种群捕食系统的分析
• Dynamic characteristics of the station keeping point and orbit perturbations are finally discussed.
  最后讨论保持点的动力学特性和轨道摄动对保持点的影响。
• All the osteological perturbations are consistent with recent elective surgeries.
  所有骨骼上的混乱都和最近的外科手术有关。
• Planetary perturbations make the earth's orbit about the sun irregular.
  行星的摄动使得地球绕太阳的轨道是不规则的。
• The question on bifurcation of limit cycles in quadratic conservative perturbations of a quadratic integrable system is discussed.
  研究了一个具有同宿轨的二次可积系统在二次保守扰动下的分支现象。
• Quadratic Stability and Control for Large-scale Interconnected Time-delay Descriptor Systems with Nonlinear Perturbations
  非线性扰动的关联时滞广义大系统的二次稳定与H∞控制
• The sensitivity of infiltration coefficient to water table perturbations is higher than that of specific yield.
  对水头摄动量影响的灵敏度，两个随机参数中渗透系数较大，给水度较小。