relaxation time approximation

例句：

1. 1. The relaxation time approximation is crucial for the stability of the system.
   松弛时间近似值对于系统的稳定性至关重要。
2. 2. In this model, the relaxation time approximation is used to describe the relaxation process.
   在这个模型中，松弛时间近似值被用来描述松弛过程。
3. 3. The relaxation time approximation is used to estimate the response of the system to external stimuli.
   松弛时间近似值被用来估计系统对外部刺激的反应。