kinescope tube

例句：

1. 1. The kinescope tube is the key component of theprojector.
   放映管是投影机的关键部件。
2. 2. The kinescope tube is responsiblefor transmitting the image to the screen.
   放映管负责将图像传输到屏幕上。
3. 3.The kinescope tube is a crucialpart of the movie projector.
   放映管是电影投影机的重要组成部分。