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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。
  • 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
  • All perturbations from normal, including vital signs and unusual symptoms, must be addressed.
    必须排除对对正常所有状态如生命体征和异常症状的所有干扰。
  • 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
  • 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。
  • 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
  • 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。
  • 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。
  • 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。