“卫星导航可用性”的概念、定义、翻译、参考文献-科学参考

单词	卫星导航可用性
释义	卫星导航可用性 Encyclopedia 工学全球卫星导航系统释 satellite navigation availability卫星导航可用性卫星导航系统在其服务空域内能为载体提供可用导航服务的时间百分比，是对满足服务性能标准的时间累计效应的统计。
随便看	farmlanddrainage system planning farmland eco-economic system farmland environmental quality monitoring farmland fertility monitoring farmland improving machine farmland infrastructure farmland irrigation and drainage farmland irrigation system farmland monitoring farmland nitrogen and phosphorus loss farmland nitrous oxide emission farmland non-point source pollution controlling farmland non-point source pollution control technology farmland obstacle recognition farmland path farmland pollution farmland pollution monitoring farmland pollution risk assessment farmland protection farmland radiation transfer farmland reclamation farmland retreat for lake recovery farmland rodent community Farmland Rodent Damage in East China farmland rodent infestation in Northwest China

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。