Through the sphere grid systems, we can solve the limitation of the traditional plane grid model.
利用球面网格系统，可以解决传统平面网格模型的局限性。
The sphere grid system is mainly composed of two parts, which are the construction of sphere grids and the address coding of the grid units.
球面网格系统主要由球面网格构建和网格单元地址编码两个部分组成。
Fatigue of grid structure with bolt-sphere joints mainly behaves fatigue in joints, the critical of which is fatigue of high strength bolt.
螺栓球节点网架的疲劳主要是节点的疲劳，而节点的疲劳关键是高强螺栓的疲劳。
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