“precise ephemeris service”的概念、定义、翻译、参考文献-科学参考

单词	precise ephemeris service
释义	precise ephemeris service Encyclopedia 工学GNSS精密定位释 precise ephemeris service精密星历服务利用卫星系统地面控制站或地面跟踪站观测数据，按照一定的数学方法计算的卫星星历，对外提供精密定位服务。
随便看	photocathode photocell photocenter photocentric orbit photoceramics photochemical photochemical action photochemical aerosol photochemical aging of polymer photochemical asymmetric synthesis photochemical cell photochemical cis trans isomerization photochemical cis-trans isomerization photochemical detector photochemical dose photochemical effect photochemical efficiency photochemical equivalence law photochemical etching photochemical induction photochemical isomerization photochemical molecular device photochemical oxidant photochemical oxidants photochemical pollution

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。