After a recent Monday-evening class, five-year-old Zang Siqi rushes toward her mother, eager to show off a white rocket she has made out of paper, a Snow White sticker in its nose cone.
最近一个周一的晚班课程结束后,5岁的臧思琪(音)冲向她的妈妈,急不可待地让她看自己用纸叠的一枚白色火箭,火箭头锥部分贴着白雪公主的贴纸。
The paper presents the composition, functions, technical performance and research of the solid rocket ramjet engine ground test equipment and measurement control system in detail.
介绍了固体火箭冲压发动机地面实验装置及测控系统组成、功能、技术指标和可以开展的研究工作。
This paper attempts to analyse the tendency to develop liquid propellant rocket propulsion technology according to the requirements o launch vehicles and spacecrafts.
本文试图根据运载火箭和航天器的需要来分析液体火箭推进技术的发展趋势。
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