This paper introduces mainly the design, manufacture, debugging procedure, operational method and future expanded function of a telephone dialing controller.

主要介绍一种电话拨号控制器的设计、制作、调试、使用方法及以后的扩展功能。

youdao

This paper introduces mainly the design, manufacture, debugging procedure, operational method and future expanded function of a telephone dialing controller.

主要介绍一种电话拨号控制器的设计、制作、调试、使用方法及以后的扩展功能。

youdao