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 Bifurcations of Limit Cycles for a Linear System with 9-degree Perturbations;
  一类线性系统在9次扰动下的极限环分支（英文）
• 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。
• 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
• Closedness and Semicontinuity of Cone Efficient Solution Sets for Multiobjective Programming under Two Perturbations
  双扰动多目标规划锥有效解集的闭性和半连续性
• Due to the effects of perturbations, the distribution of air pollution often presents irregular undulations.
  受近地层局地小扰动的影响，大气污染浓度分布常呈现不规则起伏。
• Over last years, new systems have been developed to mitigate these perturbations and improve power quality.
  近年来，为了减轻这些扰动和提高供电质量，新的系统被研制。
• Robust Stabilization of a Nonlinear Neutral Varying Delay System with Nonlinear Perturbations
  一类中立型非线性扰动变时滞系统的鲁棒稳定
• Emissions of light and very low frequency perturbations due to electromagnetic pulse sources
  因电磁脉冲源引起的光辐射和甚低频微扰
• A Delay-Independent Stability Conditions for a Time-Varying Uncertain Systems with Nonlinear Perturbations
  一类时变非线性扰动不确定系统的时滞独立稳定条件
• 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。