[通信] 回路断路脉冲发送制 loop pulsing: 回路脉冲法loop disconnect pulsing: 回路断路脉冲发送制loop-battery pulsing: 环路电池脉冲发生loop-disconnect pulsing: 环路断开脉冲发生pulsing: 栏栅式(或间隔式)排期; 脉冲产生; 脉冲的产生;脉冲调制;发送脉冲; 脉冲的产生脉冲调制脉冲法; 脉冲发生; 脉冲发送; 脉动下载手机词典可随时随地查词查翻译