tracing arm造句

例句与造句

1. As the router's tracing arm moves over the model, it's cutting arm shapes the slab into roughly the right thickness _ in a matter of minutes.
2. Rather than worrying about human-rights abuses in prison, Bragg said, the defendant should have been worrying about protecting his fellow soldiers by tracing arms caches and " getting the bad guys off the streets ."
3. It's difficult to find tracing arm in a sentence. 用tracing arm造句挺难的