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

• 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。
• 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。
• Angular perturbations tend to increase instead of decrease.
  角扰动倾向于增加而不是减少。
• Adaptive robust stabilization for a class of dynamical systems with delayed state perturbations;
  本文研究一类非线性定常离散系统的鲁棒关联稳定性问题。
• 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。
• The Qualitative Study of a Food Chain System with Defensive Ability and Impulsive Perturbations
  一类具有防御能力及脉冲扰动的食物链系统的定性研究
• Initial perturbations scheme is one of the important problems in the ensemble prediction.
  初始扰动方案是集合预报研究的核心问题之一。
• Operator perturbations of Bessel sequences in a Hilbert space
  Hilbert空间中Bessel列的算子扰动
• 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。
• Under the action of universal gravitational forces the small perturbations will grow.
  在万有引力的作用下，小扰动会加强。