2.在Revit的主界面中，导航到“插入”选项卡。在该选项卡下，选择“导入CAD”命令，以导入所需的CAD文件。3.系统将 prompt you to browse files.Navigate to the location of your CAD drawing and select it.In the bottom section.you can set the scale and the elevation where the drawing will be imported。