摘要
本文介绍了电话监控自动报警器的组成结构、工作原理和它的功能,并对其电路进行了详细的分析.
This text introduced the telephone supervises and control the auto reports to the police the machine constitutes the construction, working principle, with it of function, and as to it＇ s does electric circuit proceeded the detailed analysis.
出处
《河南教育学院学报（自然科学版）》
2005年第4期31-32,78,共3页
Journal of Henan Institute of Education(Natural Science Edition)
关键词
监控器
报警电话
继电器
supervise and control the machine
the police telephone
after the electric appliances
