请问在MDT6中怎样输入STL文件

请问在MDT6中怎样输入STL文件，小弟急切想知道，那位仁兄可告之，不胜感激
:-S

好象只有输出，没有输入啊。。

STL Import for AutoCAD is a plug-in for AutoCAD 2000/2000i/2002. This plug-in gives AutoCAD the ability to import graphical data from ASCII as well as binary Stereolithography (STL) files.
  
Stereolithography files contain solids which are made up of 3 sided facets. STL Import for AutoCAD converts these facets into a single AutoCAD PolyFace Mesh entity and adds it to the contents of the currently opened AutoCAD drawing.

俺的方法是：
用solidworks打开（一定要有耐心，再加上足够的磁盘空间，转换效率实在太低了），用另存为……

再在MDT中用import输入！