Exemplified with the applications of PDMS(Plant Design Management System) in Mengjin Power Plant,the article explains the advantages of 3D design technology and its revolutionary breakthrough brought into construction management.

Machine robust design based on three stage design and fuzzy theory;

The machine robust design method is put forward by the combination of three stage design method or Taguchi s method.

The research of integrated design methodology based on QFD,TRIZ and thrice design;

The Design on Air-fuel Ratio Control of CBM Engine Intake System Based on Thrice Design;

Through analyzing and comparing the design technique conditions of air-conditioning and ventilation systems of domestic and foreign surface naval ships,this paper provides some aspects that still need to be improved,the solution approaches,the goal of optimized design,and development prospect for air-conditioning and ventilation systems of domestic surface naval ships.

The 3-dimensional design technique can realize coordinated design ofmultiple specialties, database common share, which supports that computerization and network can be realized for the information transmission between departments of design, purchase, engineering construction and engineering cost control.

Design techniques of hit-ponit on target for guided missile are introduced, and three kinds of guided missile are discussed as working examples.

The usage of CAI software s designing technology will have an impact on the CAI software s quality.

The article inquires into the changes of designing technology of political system in the West on basis of the unity of history and logic .