focusing magnifier

例句：

1. 1. This focusing magnifier helps me see details in the dark.
   这个聚焦放大镜帮助我在黑暗中看清细节。
2. 2. She used a focusing magnifier to examine the old photo albums.
   她用一个聚焦放大镜来检查旧的相册。
3. 3. The scientist focused his magnifying glass on the tiny bug.
   科学家用他的放大镜聚焦在那只小虫子上。