HomeDictionary微扰展开微扰展开Wordperturbative expansion (physics)Traditional微擾展開Copy wordwēi rǎo zhǎn kāiwei1rao3zhan3kai1Hear itMeaningperturbative expansion (physics) CC-CEDICTCharacters in 微扰展开微wēi扰rǎo展zhǎn开kāi