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

• Perturbations of Bessel sequences of order 1 in a Banach space
  Banach空间中的1阶Bessel列的扰动
• 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
• 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
• 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。
• 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
• 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。
• The robust steady-state tracking problem subjected to coprime factor perturbations and unknown external bounded disturbance is addressed.
  研究了存在未知外部干扰时的互质因子摄动系统的鲁棒稳态追踪问题。
• The question on bifurcation of limit cycles in quadratic conservative perturbations of a quadratic integrable system is discussed.
  研究了一个具有同宿轨的二次可积系统在二次保守扰动下的分支现象。
• 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。