backup recovery system造句
例句與造句
- For testing and training an emergency parachute backup recovery system was provided.
- The clump weight below the bell, which served as a backup recovery system, was removed to enable the bell to be launched over the side of the " Wildrake " rather than through the ship's moon pool.
- It's difficult to find backup recovery system in a sentence. 用backup recovery system造句挺難的