train describer造句

例句与造句

1. Such advanced schemes would also include train describer and train tracking technologies.
2. A train describer is originally an additional apparatus at electric relay interlocking boxes were later replaced by electronic control boards where the train indication is just a text element on the video display.
3. In the late 1940s and early 1950s, STC also supplied signalbox train describer equipment to Doncaster, STC also provided route setting panels for control of points and signals, using a novel " sequential switch interlocking " format based around telephone exchange switching technology.
4. It's difficult to find train describer in a sentence. 用train describer造句挺难的