folding pocketmagnifier

例句：

1. 1. This folding magnifying glass is perfect for reading small print on a computer screen.
   这个折叠式放大镜非常适合在电脑屏幕上阅读小字。
2. 2.The scientist used this folding magnifying glass to examine the microscope slides more closely.
   科学家使用这个折叠式放大镜更仔细地检查显微镜的幻灯片。
3. 3.The teacher gave us each a folding magnifying glass so we could better understand the diagrams in the textbook.
   老师给了我们每人一个折叠式放大镜，这样我们可以更好地理解课本中的图表。