electronic projection apparatus

例句：

1. 1.This electronic projection apparatus allows us to watch movies on the big screen.
   这个电子投影装置让我们能够在大屏幕上观看电影。
2. 2.The teacher used this electronic projection apparatus to demonstrate the concept of light and shadow.
   老师使用这个电子投影装置来演示光与影的概念。
3. 3. The students were amazed by the high-definition images displayed on the electronic projection apparatus.
   学生们对在电子投影装置上显示的高清晰度图像感到惊叹。