operation signal
短语词组
- train operation by signal indication 按信號顯示行車
- micro -operation signal generator 微操作信號發生器
- signal operation 信號控制;信號操作;信號節制
- signal operation instruction 通信作業須知
- small signal operation 小信號操作
- signal operation circuit 信號運算電路
- reverse travel signal operation 倒退行駛信號的工作
- signal operation instructions 通信作業教令;信號操作指令
- large signal operation 大信號操作 返回 operation signal