n. 1.慌张，动摇；混乱。 2.狼狈，不安，焦虑。 3.引起不安[混乱]的事物；引起动摇的原因。 4.【天文学】摄动；【物理学】微扰。 adj. -al
the act of causing disorder 同义词：disruption,
a disposition that is confused or nervous and upset 同义词：fluster,
activity that is a malfunction, intrusion, or interruption; "the term `distress'' connotes some degree of perturbation and emotional upset"; "he looked around for the source of the disturbance"; "there was a disturbance of neural function" 同义词：disturbance,
(physics) a secondary influence on a system that causes it to deviate slightly
an unhappy and worried mental state; "there was too much anger and disturbance"; "she didn''t realize the upset she caused me" 同义词：disturbance, upset,
例句与用法
1.
Angular perturbations tend to increase instead of decrease . 角扰动倾向于增加而不是减少。
2.
He was making no attempt now to conceal his perturbation . 他已经不再企图掩饰自己的惶恐不安了。
3.
The drag perturbations have a minor effect on stability criteria . 阻力的变化对稳定性的影响较小。
4.
Planetary perturbations make the earth's orbit about the sun irregular . 行星的摄动使得地球绕太阳的轨道是不规则的。
5.
Under the action of universal gravitational forces the small perturbations will grow . 在万有引力的作用下，小扰动会加强。
6.
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。
7.
Perturbations of the force field will cause changes, or variations, of the displacement field . 力场的扰动要引起位移场的变化或者说变分。
8.
In order to keep variations negligibly small, only small perturbations will be considered . 为了使变分小到可以忽略的程度，仅考虑微小的扰动。
9.
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。
10.
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。
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