*.Sat file format for read/writen ACIS files

Reference for creating ACIS SAT File format

本程序是利用Acis程序中的保存sat文件格式的函数对所建三维模型进行保存，主要完成sat文件保存接口。-This program is a save the sat file format the function to save the three-dimensional model built by Acis program, mainly to complete sat save the file interface.