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 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。
• Operator perturbations of Bessel sequences in a Hilbert space
  Hilbert空间中Bessel列的算子扰动
• Perturbations of Bessel sequences of order 1 in a Banach space
  Banach空间中的1阶Bessel列的扰动
• 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。
• 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
• 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。
• 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。
• Angular perturbations tend to increase instead of decrease.
  角扰动倾向于增加而不是减少。
• 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
• The fact is that small density perturbations or departures from perfect homogeneity, are unavoidable in such a medium.
  小的密度扰动或对理想均匀性的偏离在这样的物质中不可避免。