“satellite navigation availability”的概念、定义、翻译、参考文献-科学参考

单词	satellite navigation availability
释义	satellite navigation availability 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	exchange degeneracy exchange diffusion exchange electron-spin resonance exchange encryption exchange energy exchange ET exchange extraction exchange force exchange half life exchange half-life exchange half time exchange half-time exchange half-time; exchange half-life exchange hole exchange instability exchange integral exchange interaction exchange lattice exchange mode exchange network exchange of mass exchange of publications exchange of stability exchange of water conservancy data exchange on basis

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