flat leaf spring造句

例句与造句

1. The Flattop and Three Screw Rugers were modernized compared to the Colt Single Action Army, in that they had adjustable sights instead of the Colt's fixed sights, and they used wire coil springs instead of the Colt's flat leaf springs.
2. It's difficult to find flat leaf spring in a sentence. 用flat leaf spring造句挺难的