program control real-time clock

例句：

1. 1.The program control real-time clock is used to monitor the temperature in the factory.
   程序控制实时时钟用于监控工厂的温度。
2. 2. The real-time clock on the computer screen shows the current time.
   电脑屏幕上的实时时钟显示当前时间。
3. 3.The program control real-time clock was designed to improve efficiency in data processing.
   程序控制实时时钟被设计用来提高数据处理的效率。