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

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。
Adaptive robust stabilization for a class of dynamical systems with delayed state perturbations;
本文研究一类非线性定常离散系统的鲁棒关联稳定性问题。
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
Angular perturbations tend to increase instead of decrease.
角扰动倾向于增加而不是减少。
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。
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。
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。
A Delay-Independent Stability Conditions for a Time-Varying Uncertain Systems with Nonlinear Perturbations
一类时变非线性扰动不确定系统的时滞独立稳定条件
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。