All the geometry of your drawing is contained in layouts. Model space geometry is contained on a single layout named Model. You cannot rename the Model space layout, nor can you create another Model space layout as there can be only one per drawing.
图形中的所有几何图形都包含在布局中。模型空间几何图形包含在称为“模型”的单个布局中。用户不能重命名模型空间布局，也不能创建其他模型空间布局，并且每个图形只能有一个模型空间布局。
Paper space geometry is also contained on layouts. You can have many different Paper space layouts in your drawing, each representing a different configuration to print. You can change the name of the Paper space layouts.
图纸空间几何图形也包含在布局中。图形可以具有多个不同的图纸空间布局，每个布局代表一种不同的打印配置。可以修改图纸空间布局的名称。
The “*MODEL_SPACE” BlockTableRecord in the BlockTable contains all the geometry in the Model space layout. Because there can be more than one Paper space layout in a drawing, the “*PAPER_SPACE”BlockTableRecord in the BlockTable points to the last active Paper space layout.
在 BlockTable 对象中的名字为 “*MODEL_SPACE” 的 BlockTableRecord 对象包含在模型空间布局中的所有几何图形。由于一个图形可以具有多个图纸空间布局，所以在 BlockTable 中命令为 “*PAPER_SPACE” 的 BlockTableRecord 对象指向最后一个活动的图纸空间布局。
For more information about working with Paper space layouts, see “Create Multiple-View Drawing Layouts (Paper Space)” in the AutoCAD User's Guide.
有关操作图纸空间布局的详细信息，请参见《AutoCAD 用户手册》中的“创建多视图的图形布局（图纸空间）”部分。
