Model space is the drawing environment in which you create the geometry for your model. Normally, as you begin to draw in Model space, you designate your drawing limits to determine the extents of the drawing environment, and you draw in real world units.
模型空间是创建模型几何图形的图形环境。通常，当开始在模型空间中绘图时，通常需要指定图形界限以确定图形环境的范围，然后按实际的单位来绘图。
Paper space represents the paper representation of your model as it will be plotted. In Paper space you lay out different views of your drawing, scale views independently from one another, and arrange the different views of your drawing as you want them to be plotted. There can be many different Paper space representations of your drawing.
图纸空间代表模型打印时的图纸表示方式。在图纸空间中可以布局图形的不同视图、独立地缩放各个视图并按照所需的打印布局排列图形的不同视图。一个图形可以有多个不同的图纸空间表示。
