程控信号发生器
programmable signal generator
通信信号源
communication signal source
多路过程信号发生装置
Multi-channel Process Signal Generator
辅助工程信号处理机
auxiliary engineering signal processor
AESP
工程信号处理机
engineering signal processor
ESP
可编程信号处理机
programmable signal processor
可编程信号处理器
programmable signal processor
铁路通信信号工程技术
railway signalling & communication engineering
远程信号检测
long distance signal detection