Finished product oil transportation technology design feature and piping construction technique in high-frigid zone from germu to Lasa are analysed.
分析了格拉（格尔木—拉萨）成品油管道输送工艺设计特点和适合高寒地区管道敷设施工技术的应用；
Improving on the efficiency of feature editing has been regarded as the key technology of parametric design system.
提高特征编辑的效率是基于特征的参数化系统的关键技术。
The feature based modeling technology is found a new way to realize the integration of CAD system and life cycle design system.
特征技术为实现CAD系统和生命周期设计系统的集成开辟了新的道路。
应用推荐