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...
The survey claims loan companies prey on weak families already in debt.这项调查声称信贷公司专对那些已经负债的弱势家庭下手。By October 1990, when arrested, he was hopelessly in debt.到1990年10月被捕时，他已经负债累累。He was desperate. He was in debt up to his e...
An expository treatise or series of annotations; an exegesis.对某一特定主题给出注释或说明的 词汇表....a substantial exegesis of his work.对他作品的大量注释the branch of theology that deals with principles of exegesis研究诠释原理的神学分支Exegesis of selected...
Wendy popped in for a quick bite to eat on Monday night.温迪周一晚上过来匆匆吃了点儿饭。He popped out to buy a pint of milk.他匆匆出门去买一品脱牛奶。I popped my head round the door once or twice.我有几次头撞到了门上。...