She says the boat would be shaped like a capsule, powered by a small nuclear engine, and though there would be no sail, it would have a mast to hold a camera.
她说船将被制成胶囊形，由一个小型核动力引擎驱动，尽管不会有帆，但船上会有一个固定照相机的桅杆。
The rocket USES a nuclear engine, a technology that was under serious investigation for a long time.
火箭采用的则是人们长期以来一直认真研究的核动力引擎技术。
The rocket uses a nuclear engine, a technology that was under serious investigation for a long time (and may yet see its day in space).
宇航员的火箭使用的是核动力引擎，该技术长久以来都处在认真研究之中（但至今仍未能投入实用）。
So far NASA is exploring two options for propulsion there? A nuclear thermal rocket and a chemical engine.
迄今为止NASA研究了两种前往那里的备选推进器：核热火箭和化学发动机。
The main part of apricot nuclear crushing engine-crushing roller is designed and studied in this paper.
对杏核破壳机的主要部件挤压辊进行了设计研究。
Recycling second-hand aircraft carrier, overhaul nuclear reactor, unpick and wash missile engine oil, clean aircraft carrier, space shuttle, maintenance, such change.
回收二手航母，大修核反应堆，拆洗和洗导弹发动机油，清洁的航空母舰，航天飞机，维修，这样的变化。
Recycling second-hand aircraft carrier, overhaul nuclear reactor, unpick and wash missile engine oil, clean aircraft carrier, space shuttle, maintenance, such change.
回收二手航母，大修核反应堆，拆洗和洗导弹发动机油，清洁的航空母舰，航天飞机，维修，这样的变化。
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