transient thermal defocusing

例句：

1. 1. The transient thermal defocusing effect of the laser beam is a significant factor in image processing.
   激光束的瞬态热失焦效应是图像处理中的一个重要因素。
2. 2. In the process of manufacturing, transient thermal defocusing can lead to defects in the finished product.
   在制造过程中，瞬态热失焦可能导致成品中出现缺陷。
3. 3. The researchers found that transient thermal defocusing could be mitigated by using a special coating on the lens.
   研究人员发现，通过在透镜上使用一种特殊的涂层可以减轻瞬态热失焦。