1. Those were dark days for the Chinese space program. But in the 17 years since, China has mastered its rocketry technology.
这是中国航天的惨淡时光。但在之后的17年里，中国已熟练掌握了火箭技术。
www.ltaaa.com
2. This course contains labs, assignments, projects, and related resources dealing with aircraft and rocketry design concepts.
本课程包括实验、作业、项目设计和关于航天器和火箭设计概念的相关资料。
dict.site
3. Chris, go to your local library and check out a rocketry book or an encyclopedia to learn who first invented gun power to propelled rockets around the 13th century.
去你的当地图书馆查一查火箭书籍或者百科全书，了解下是谁在13世纪左右首先发明了推进火箭的火药。
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4. For whatever reason, rocketry maintains a strong allure for other Silicon Valley technologist-types as well.
无论出于什么原因，火箭技术也对其他的硅谷技术型创业者具有强大的吸引力。
www.51en.com
5. Their research in rocketry blazed the way for space travel.
他们在火箭方面的研究开辟了太空旅行的道路。
《21世纪大英汉词典》
6. The city itself is a rusting 8)relic of the golden age of Russian rocketry, yet if anything, its place in the space industry is heading toward expansion.
