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。
The model is used to optimize the spatial structure of land use of a city.
应用该模型对某城市的城市土地利用空间结构进行了优化配置。
Finally, a novel spatial truss mechanism model for the beam-wider-than-wall joint is put forward.
最后还提出了梁筋直锚型节点受力的空间桁架模型。
Finally, a novel spatial truss mechanism model for the beam-wider-than-wall joint is put forward.
最后还提出了梁筋直锚型节点受力的空间桁架模型。
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