例句與造句

1. During the process of man-rating Atlas for Project Mercury, solving combustion instability was a high priority, and the final two Mercury flights sported an upgraded propulsion system with baffled injectors and a hypergolic igniter.
2. The ignition system was also different from the one used on the D-series, which used a " wet " start, meaning that the propellants were injected into the combustion chamber prior to ignition, and a hypergolic igniter on the fully developed version.
3. It's difficult to find hypergolic igniter in a sentence. 用hypergolic igniter造句挺難的