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

• Stability of Multiobjective Programming under the Constraint Cone and the Control Cone Perturbations
  约束锥和控制锥扰动多目标规划的稳定性
• 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。
• 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。
• Operator perturbations of Bessel sequences in a Hilbert space
  Hilbert空间中Bessel列的算子扰动
• 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。
• 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）
• 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。
• 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。
• Since the circular restricted three-body problem model ignores the effect of perturbations, it can not accurately describe the dynamic characters of the three-body system.
  圆型限制性三体问题模型忽略了摄动因素的影响，在很多情况下不能足够准确地描述三体系统的动力学性质。
• 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