perturbation是什么意思？

perturbation

英[ˌpɜ:təˈbeɪʃn] 美[ˌpɜrtərˈbeɪʃn]

• n. <正>忧虑，不安，烦恼，<术>摄动；

复数：perturbations;

例句

• orbit perturbation of spacecraft 航天器轨道摄动
• The equations defining the zero - order perturbation simply govern the static solution. 定义零 级微 扰的方程简单地决定了静态解.
• Unwillingly she met his eyes, defiance and perturbation on her face. 她极不情愿地看着他的眼睛, 满脸反抗和烦乱的神色.
• This message caused perturbation in the Middle East Headquarters. 这则消息在中东总部引起了不安。
• TIDAL PERTURBATION OF GEOPOTENTIAL COEFFICIENTS OF SECOND ORDER BASED ON THE PREM RHEOLOGICAL PARAMETERS. 基于PREM的地球引力势二阶系数的潮汐摄动.

柯林斯高阶英汉双解学习词典释义

• N-VAR
  （尤指不常出现的）小变化
  A perturbation is a small change in the movement, quality, or behaviour of something, especially an unusual change.
  例句
  ...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
  Perturbation is worry caused by some event.
  例句
  This message caused perturbation in the Middle East Headquarters. 这则消息在中东总部引起了不安。

英汉词典释义

• n.
  <术>摄动;微扰;小变异
  analytic perturbations 解析摄动 periodic perturbations 周期摄动 orbit perturbation of spacecraft 航天器轨道摄动

英英词典释义

• Noun
  1. an unhappy and worried mental state;
  "there was too much anger and disturbance""she didn't realize the upset she caused me"
  2. (physics) a secondary influence on a system that causes it to deviate slightly
  3. activity that is an intrusion or interruption;
  "he looked around for the source of the disturbance""there was a disturbance of neural function"
  4. a disposition that is confused or nervous and upset
  5. the act of causing disorder

行业词典

• 力学： 摄动；
  动物学： 干扰；
  天文学： 摄动；又称 :摄动(disturbance)；(1) 天体轨道对圆锥曲线的偏离。(2) 使天体轨道偏离圆锥曲线的扰动过程。；
  数学： 扰动；
  物理学： 摄动；微扰；
  生态学： 扰动；一般是指系统在正常范围内的波动。它往往有一定的规律可循，并具有可预知性，为一般意义上的环境波动行为。；
  航天： 摄动；