“卫星导航时间系统”的概念、定义、翻译、参考文献-科学参考

单词	卫星导航时间系统
释义	卫星导航时间系统 Encyclopedia 工学全球卫星导航系统释 satellite navigation time system卫星导航时间系统用于精确描述天体和人造卫星运行位置及相互关系的卫星导航的重要基准系统。
随便看	railway signaling vital relay railway sound barrier railways passenger car equipment railway station railway station and terminal railway structural deformation survey railway subgrade engineering railway subgrade maintenance railway subgrade non-destructive detection railway switch transition equipment railway tank car railway tanker railway technical station railway terminal railway ticket railway timber transportation railway time synchronization network railway track railway track maintenance and renewal railway traction network railway traffic accident railway traffic capacity railway traffic control railway traffic hygiene quarantine railway traffic volume

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。