泛定方程 Save Sign in to save words fàndìngfāngchéng ㄈㄢˋ ㄉㄧㄥˋ ㄈㄤ ㄔㄥˊ universal differential equation Character by character 泛(fàn)general 定(dìng)fix 方(fāng)surname Fang 程(chéng)surname Cheng A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0