viewing screen的用法和样例：
例句
- The advertisement is full of the TV screen today.
今天，电视屏幕被广告占据。 - Do not look at the TV screen for a long time.
不要长时间地盯着电视屏幕看。 - The radarman's eyes were glued to the screen.
雷达兵目不转睛地注视着荧光屏。 - A. is alerted by a buzzer and a blue light on the screen.
阿先生洗完淋浴后，即得到一阵蜂鸣器的响声和荧光屏上一道蓝光的提示。 - There are enemy aircraft on the radar screen.
雷达萤屏上出现了敌人的飞机。 - Displays output one screen at a time.
每次显示一屏输出结果。
