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

• 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 food chain model of three species with impulsive perturbations and mixed functional response is proposed and studied.
  提出并研究了一类具有脉冲干扰和混合功能反应的三种群捕食链模型。
• 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
• Angular perturbations tend to increase instead of decrease.
  角扰动倾向于增加而不是减少。
• 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
• 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。
• 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。
• 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
• 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。
• 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。