non-stationary iteration

例句：

1. 1. The non-stationary state of the system is a critical factor in its behavior.
   系统的非稳态状态是其行为的关键因素。
2. 2. The non-stationary nature of this phenomenon requires careful consideration when designing experiments.
   这种现象的非稳态特性要求在设计实验时仔细考虑。
3. 3. In non-stationary environments, it's essential to adapt quickly to changes.
   在非稳态环境中，迅速适应变化至关重要。