pocket stereoscope

例句：

1. 1. This pocket stereoscope is perfect for taking close-up shots of small objects.
   这个口袋立体镜非常适合拍摄小物体的特写镜头。
2. 2.The scientist used the pocket stereoscope to study the structure of the new virus.
   科学家使用口袋立体镜研究了这种新型病毒的结构。
3. 3.The children were thrilled when they discovered a pocket stereoscope in their grandfather's old suitcase.
   当孩子们在祖父的旧行李箱里发现了一个口袋立体镜时，他们非常兴奋。