名词
中文翻译：Unknown
同义词：
['jet', 'rocket', 'propulsion']
例句：
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1. The jet-powered aircraft can travel at speeds of up to 600 miles per hour.
这种喷气式飞机的最高时速可达每小时600英里。
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2. The rocket scientist is working on developing a new propulsion system for the spacecraft.
这位火箭科学家正在研究为宇宙飞船开发一种新的推进系统。
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3. The propulsion system was designed to make the vehicle more efficient and eco-friendly.
这个推进系统的设计目的是使车辆更加高效和环保。