对航天飞行器防热部件在氧煤油发动机火焰喷吹下的烧蚀行为进行了有限元数值模拟。
The ablation behavior of spacecraft thermo-resistance components under blowing by oxygen-kerosene flame is investigated by means of finite element numerical simulation.
航空煤油发动机的尺寸经过优化设计，已经能够在发动机的最有效的操作点上提供巡航动力，进而从总体上提高燃料效率。
Thepetrol engine is optimally sized to provide the cruise power at its most efficient operating point, resulting in an improved fuel efficiency overall.
采用煤油和液体氧为燃料的9台捆绑式发动机负责提升重物。
The heavy lifting is done by the nine-engine cluster, fuelled by kerosene and liquid oxygen.
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