这起事故再一次引发了人们对于工厂安全性的质疑。The accident again raises questions about the safety of the plant.社区迅速作出反应，宣传安全性行为。The community reacted quickly and spread the word about safe sex.购车者们更感兴趣的是汽车的安全性和可靠性，而不是它的速度。Car buyers are more ...
较轻的推进器采用液态氢, 较重的采用自燃推进剂.The lighter version used liquid hydrogen, the heavier used hypergolic propellants.这个工厂为弹道导弹生产推进剂。The factory produces propellant for ballistic missiles.挤压 式 发动机对推进剂中溶解的气体特别敏感.Pressure - fed engine...
Smallness is the antithesis of largeness.小是大的对立面.The authority of his voice is undermined by the smallness of his build.瘦小的身形削弱了他声音中的权威感。In a way, the smallness of the room added to its luxury.在某种程度上, 房间窄小反倒显得更加华丽....