Read Edit View history 二阶 èrjiē second-order Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 二阶/ 二階 èrjiē second-order second order or quadratic (referring to the degree or order in mathematics) 这个二阶微分方程很难解。 Edit Delete References Add reference No references for this word.
二阶/ 二階 èrjiē second-order second order or quadratic (referring to the degree or order in mathematics) 这个二阶微分方程很难解。 Edit Delete