qualitative theory

• 定性理论

qualitative theory的用法和样例：

例句

1. Methods The qualitative theories of ordinary differential equations are used.
   方法运用常微分方程定性理论进行讨论。
2. The more recent research on differential equations is concerned with the qualitative theory.
   对微分方程更近代的研究是关于定性理论。