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）
• Operator perturbations of Bessel sequences in a Hilbert space
  Hilbert空间中Bessel列的算子扰动
• 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
• 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。
• 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
• Dynamic characteristics of the station keeping point and orbit perturbations are finally discussed.
  最后讨论保持点的动力学特性和轨道摄动对保持点的影响。
• 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。
• 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。