perturbation

n.

忧虑；不安；烦恼；摄动

复数：perturbations

perturbation method[化]微扰法，微扰理论

perturbation theory微扰理论；摄动理论

perturbation equation扰荡方程，扰动方程

1. 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。

Perturbation Theory of Linear Operators
Perturbation theory for linear operators
Introduction to Perturbation Techniques
Self-consistent perturbation theory of diamagnetism. Mol Phys 27: 789-807
Many-Body Perturbation Theory and Coupled Cluster Theory for Electron Correlation in Molecules
Second‐order perturbation theory with a complete active space self‐consistent field reference function
Phonons and related crystal properties from density-functional perturbation theory
Electron Correlations in Narrow Energy Bands. V. A Perturbation Expansion About the Atomic Limit
Contribution of triple substitutions to the electron correlation energy in fourth order perturbation theory
Different forms of the zeroth-order Hamiltonian in second-order perturbation theory with a complete active space self-consistent fie...