例句與造句

1. The rail flaw detector car was invented by Dr . Elmer A . Sperry.
2. To railways and railfans, Sperry's name is most likely associated with the Sperry Rail Detector car.
3. Specialized rail inspections in this area are performed by CSX's contractor, Sperry Rail Service, using internal rail flaw detector cars.
4. It's difficult to find detector car in a sentence. 用detector car造句挺難的