“user elevation database”的概念、定义、翻译、参考文献-科学参考

单词	user elevation database
释义	user elevation database Encyclopedia 工学卫星无线电定位业务释 user elevation database用户高程数据库测量与控制中心（MCC）存储的，以等高线数据和少量控制点数据，选择合适的算法生成的数字高程模型（DEM）数据。
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