恒等方程式 héngděngfāngchéngshì identity equation Definitions Defs Origin Strokes Stroke Words Sentences Sents 恒等 恆等 héngděng identical (mathematics, logic) identically equal; identical; to be an identity方程式 fāngchéngshì noun equation a mathematical statement that two expressions are equal, usually containing one or more unknown values; chemical equation or formula
