微扰 wēirǎo perturbation Origin Definitions Defs Strokes Stroke Words Sentences Sents 微扰论 wēirǎolùn perturbation theory 微扰展开 wēirǎozhǎnkāi perturbative expansion A mathematical method used in physics to find an approximate solution to a problem, typically involving a power series.非微扰 fēiwēirǎo non-perturbative non-perturbative (physics)