The radial-tracing algorithm and the effective earth model are discussed.
讨论了大气折射的射线追踪算法和等效地球模型；
The globe is a model of the earth.
一个球体可作为地球的模型。
Know the globe is the model of the earth.
知道地球仪是地球的模型。
Planet Earth could be a paradise planet - a model for all.
地球将成为一个天堂星球，所有星球的典范。
An experimental model of digital earth system was developed.
给出了数字地球系统实验原型。
Aglobe is a model of the earth. It looks like the earth.
地球仪是地球的模型，看上去像地球。
Method of regional height transformation based on earth gravity field model;
描述了地球重力场模型和中国海及邻域重力异常的特征。
In the end, earth pressure model considering settlement and time effect is presented.
最后，提出了考虑变形和时间效应的土压力计算方法。
In the end, earth pressure model considering settlement and time effect is presented.
最后，提出了考虑变形和时间效应的土压力计算方法。
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