例句與造句

1. Reusable rocket engines are unheard of outside of this program.
2. Much of the new safety margin was derived from a $ 1 billion upgrade of the shuttle's reusable rocket engines.
3. One of the three reusable rocket engines assigned to Endeavour's upcoming flight also had an identical pin in its oxygen injection system.
4. Missing at the outset were the heat shielding tiles to insulate the shuttle from the searing temperatures of atmospheric re-entry, the sophisticated computer-managed electronic flight control system and the reusable rocket engines.
5. Although not as powerful as other fuels, it left no soot in the reusable rocket engine and its density approximately matches the density of the oxidizer, liquid oxygen, which simplified the aircraft's design.
6. It's difficult to find reusable rocket engine in a sentence. 用reusable rocket engine造句挺難的
7. On 3 December 2005, XCOR Aerospace flew its EZ-Rocket ( a rocket-powered Long-EZ aircraft the company built as a demonstrator for its reusable rocket engines ) from Mojave, California to California City, California, both in Kern County.