periodic solutions

• 周期解

periodic solutions的用法和样例：

例句

1. The mathematicians turned to culling periodic solutions.
   数学家们转而去挑选周期解。
2. A energy iteration method for periodic solutions to second order strongly nonlinear non-autonomous systems is suggested.
   摘要给出了确定一般二阶强非线性非自治系统周期解的能量迭代方法。