挤出流形
模式
编辑模式
工具
菜单
Mesh ‣ Extrude ‣ Extrude Manifold
快捷键
This tool is very similar to 挤出面 but enables Dissolve Orthogonal Edges by default. This causes the tool to automatically split and remove adjacent faces when extruding inwards.
Extrude Manifold Example.