“launch window”的概念、定义、翻译、参考文献-科学参考

单词	launch window
释义	launch window Encyclopedia 工学发射弹道与入轨释 launch window发射窗口满足预定飞行条件和任务要求，允许运载火箭发射的时间范围。又称发射时机、发射机会。 Astronomy launch window最佳发射时间
随便看	lower half-plane lower half-space lower heating value lower heat value coal lower hemisphere lower-he-sea point lower homology lower hybrid frequency lower hybrid oscillation lower hybrid wave lower index lowering lowering mapping lowering of index lowering of order lowering operator lower integral lower Lebesgue sum lower limb lower limb prosthesis lower limit lower limit event lower limit function lower limit of an integral lower limit of a sequence

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。