The ellipsoid model is the first part of a spatial reference system definition.
椭圆体模型是空间引用系统定义的第一部分。
When studying the movements of objects, we must first set up the reference system.
研究物体运动时，一定要先设置参照系。
Further strengthen the rational use of the reference system construction;
进一步加强合理引用参考文献的制度建设；
Let us consider a reference system attached to the aircraft referred to above.
让我们来考虑一下设在上述飞机上的参照系。
The picture concept in Quantum is extension of reference system concept in Classical Physics.
量子力学中绘景的概念是经典力学中参照系概念的推广。
The measuring pattern is the content of the Reference System.
这个衡量模式就是参照系的内容。
The measuring pattern is the content of the Reference System.
这个衡量模式就是参照系的内容。
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