closed-form solutions

• 解析解

closed-form solutions的用法和样例：

例句

1. Numerical and analytical solutions are presented.
   文章中同时提出解析解与数值解。
2. According to engineering applications, some analytic solutions of two typed load action that impact and periodicity are given.
   根据工程应用，给出了冲击性和周期性两类典型载荷作用下的解析解。