“待发段”的概念、定义、翻译、参考文献-科学参考

单词	待发段
释义	待发段 Encyclopedia 工学﹝上升段轨道﹞释 wait-launching phase待发段在使用运载火箭发射载人飞船的任务中，从发射前航天员进入飞船返回舱至运载火箭点火发射前的时间段。又称待发射段。
随便看	category of topological spaces category product Category Reference Positioning category-specific disorder category subsumption category system of injury category theorem category theory Category Theory of Concept category unification category with composition category with coproducts category with direct limits category with inverse limits category with involution category with limits category with multiplication category with product and composition category with products category with pullbacks category with pushouts category with structure category with topology catelectrode catelectrotonus

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。