a differential system的用法和樣例：
例句
- This paper is devoted to the viability of a class of differential inclusion.
摘要討論了一類微分包含可生存性的判別問題。 - In this paper, we investigate the iterated order and iterated convergence exponent to zero sequence of the solutions of some classes of differential equations.
摘要本文研究了幾類微分方程解的迭代增長級及零點迭代收斂指數。
