“national astro-geodetic network”的概念、定义、翻译、参考文献-科学参考

单词	national astro-geodetic network
释义	national astro-geodetic network Encyclopedia 工学大地起算数据释 national astro-geodetic network国家天文大地网在中国领土范围内，由互相联系的大地测量点（简称大地点）构成的网，大地点上设有固定标志，以便长期保存和使用。简称国家大地网。建立国家大地网的经典方法是边角测量，需要采用天文观测方法测定天文经纬度和方位角，所以又称为天文大地网。
随便看	maintainable system maintainer line in forage plants maintaining needling sensation maintaining stability maintain net energy maintain organizational image maintain organizational interests maintain organizational safety main technical standards for railway engineering design maintenance maintenance analysis procedure maintenance analysis procedure, MAP maintenance and management for green building planting maintenance and management of airport infrastructure Maintenance and Management of Irrigation Projects in Ancient China maintenance and management of plants maintenance and management of street trees maintenance and repair in water conservancy project maintenance and support vehicle maintenance business outsourcing maintenance capacity maintenance center maintenance charge maintenance cost maintenance cost, maintenance charge

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。