perturbation

英[pɜ:(ʌ)tə(ʌ)'beiʃn]美[pɜ:(ʌ)tə(ʌ)'beiʃn]

n.
1.[U] 忧虑；不安；烦恼
2.[U,C] 摄动；微扰；小变异

同：	[n.] disruption, disturbance, fluster, upset

Because of the perturbation, Mars experiences some torque
因为有微扰，火星就受到一些转矩的作用。收藏
We must seek two main approximation methods of solution, the variation method and perturbation theory
我们必须寻求两个主要的近似解法、变分法和微扰法。收藏
His real perturbation of mind would be best covered and pass concealed under a disguise of pretended lunacy
在假装疯狂的掩护下，他心神的真正不安倒可以巧妙地遮盖起来。收藏
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。收藏

an unhappy and worried mental state
- there was too much anger and disturbance
- she didn't realize the upset she caused me
[同] disturbance, perturbation, upset
(physics) a secondary influence on a system that causes it to deviate slightly

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