主要介绍了怎样创建三管相贯的几何体。在生成网格之前，对此三管几何体进行了分解，形成四部分：三根单管和位于相贯处的楔形体（八分之一球体）。然后，对这些分体分别运用GAMBIT中的Cooper和Tet Primitive网格化方法进行了网格划分。-Introduces how to create three intersecting geometry. Before generating the grid, this three geometry was decomposed to form four parts: three single-tube and in the Office of wedge intersection (one-eighth of the sphere). Then, these were split in the use of GAMBIT' s Cooper and Tet Primitive methods are grid mesh.