Based on the statements of the flight operation system of the airlines,the paper researches the data relation of FOS, the system structure of FOS, and sets up the network platform of system, designs the database, and makes it in Yun Nan airline company.

Modeling and simulation of the civil flight management system are very important in a civil flight simulator.

A systematic design method for flight trajectory command integrated tracker of tactical mission integrated flight management system(TMIFMS) is developed through the multiple time scale singular perturbation method combined with dynamic inverse decoupling control theory and optimal decoupling control law theory for optimal linearization system in a small neighborhood of a dynamic equilibrium point.

Combined with the design of the utility tunnel in reclamation area of Dalian Free Trade Zone, the design scheme of utility tunnel section, auxiliary facilities and operation management system was introduced, and the key problems to which attention should be paid in the design were discussed.

Combined with the design of the engineering tunnel in Hi-tech Industrial Area of Qingdao, the article introduces the section of engineering tunnel, overall design, auxiliary facilities, structural design and operation management system scheme, and discusses the key issues for attention in the design.