911chaxun查询·英语单词
名词火箭引擎，火箭发动机
1. Then NASA needed an extra day to check the rocket after engine heaters stayed on too long.
2. In the latest test, it did not fire its rocket engine to climb to space.
3. A NASA team concluded a rocket engine shut off too soon, causing the craft to plummet about 130 feet to almost certain destruction.
4. 911查询·英语单词
4. Significant progress has been made on the rocket engine and the building of a production plant.
5. There were new designs for the plane's rocket engine, landing equipment and the small rockets needed to move it in space.
6. A rocket launched in November 1997 crashed in the Atlantic Ocean after suffering engine problems shortly after blast off.
noun
1. a jet engine containing its own propellant and driven by reaction propulsion
Synonym: rocket