Thermal focal lens

• 热透镜

Thermal focal lens的用法和样例：

例句

1. It has been found that before thermal equilibrium to become established in the element, its thermal lensing effect presents a kind of behavior of fluctuation.
   实验发现，光学元件在达到热平衡状态之前，其热透镜效应呈现某种波动起伏的特征。