Noun:
an unhappy and worried mental state;there was too much anger and disturbance
she didn't realize the upset she caused me
physics a secondary influence on a system that causes it to deviate slightlyactivity 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
a disposition that is confused or nervous and upsetthe act of causing disorder perturbation technique摄动技术perturbation approximation微扰近似perturbation motion扰动perturbation theory微扰理论velocity perturbation速度波动random perturbation随机扰动thermal perturbation温度扰动perturbation method摄动方法,扰动法,微…perturbation equation扰动方程perturbation potential扰动势absolute perturbation绝对摄动,绝对扰动…general perturbation普遍摄动magnetic perturbation磁扰perturbation calculation微扰计算perturbation analysis扰动分析perturbation parameter摄动参数drag perturbation阻力扰动
per-前-tubat-ion行为|动作|状态⇒n.扰动微扰;波动;破坏;摄动n.引起不安的事物;不安;烦恼;动摇;扰乱;慌张;混乱;天摄动;狼狈;焦虑;引起动摇的原因;物微扰;变化;起伏;小变异;忧虑近义词 funk恐惧alarm警报worry撕咬haste急速unrest不安tension紧张upset心烦的fluster慌乱disquiet担心distress不幸disorder混乱agitation激动uneasiness担忧disruption分裂disturbance扰乱trepidation恐惧discomposure失态
用作名词The effects of WOB fluctuation of drill string on the wellbore trajectory are analyzed by using stochastic finite element method and perturbation equation.借助随机有限元方法和摄动方程初步分析了钻压波动对井眼轨迹的影响。