| 1. | Design and key technology of reciprocating pump cad system
系统设计及其关键技术 |
| 2. | The development and study of cad system for reciprocating pump
系统的开发与研究 |
| 3. | Architecture and key techniques of a collaborative cad system
系统结构及关键技术 |
| 4. | Optimization design and cad system of worm and gear
蜗轮蜗杆的参数化设计与绘图 |
| 5. | Research on cad system of centrifugal type ventilator
离心通风机设计软件系统的开发 |
| 6. | Study of cad system of ventilation based on objectarx
的通风辅助设计系统研究 |
| 7. | Data - exchanging methods of products in different cad system
系统中产品数据交换方法 |
| 8. | Technical drawings preparation of lines by cad systems
技术制图cad系统用图线的表示 |
| 9. | Developmeant on cad system for railway culvert
电力数据备份系统的建设与研究 |
| 10. | Developing method of cad system based on pro engingeer
系统二次开发方法研究 |
