... 信号代码书 signal code book 信号旗桁signal yard 蒸汽散热器 steam radiator ...
2
?信号桁
... signal winding 控制绕组 signal yard信号桁 signal α α信号 ...
双语例句
1
This paper introduces the structural features and functions of JWT-type cab radio signal within hump yard, field application of its measure method and maintenance are introduced .