traversing beam造句

例句与造句

1. The traverse beams are in turn supported by hangers to the concrete arch.
2. Over the part of the bridge where the arch rises above the level of the bridge decking, the two bridge decks are joined by traverse beams positioned at 25.5 metres ( 83.7 ft ) centres.
3. It's difficult to find traversing beam in a sentence. 用traversing beam造句挺难的