operation signal
短语词组
- train operation by signal indication 按信号显示行车
- micro -operation signal generator 微操作信号发生器
- signal operation 信号控制;信号操作;信号节制
- signal operation instruction 通信作业须知
- small signal operation 小信号操作
- signal operation circuit 信号运算电路
- reverse travel signal operation 倒退行驶信号的工作
- signal operation instructions 通信作业教令;信号操作指令
- large signal operation 大信号操作 返回 operation signal