This paper studies the theoretical basis and formulas of an approach,which is used to estimate the inertial platform drift error of a type of importing battleplan with parking heading.

In order to enhance the accessibility of parking facilities during drivers travel status,queue theory and living or ruined process state equation are introduced to describe the whole parking course.

From the views of line layout, the form of inspection pit and the working platform for the top works of train, the technological characteristics of the design of garage for train parking and inspecting in Tuqiao Depot of Beijing Metro Batong Line are discussed.

The operation principles of the spring energy storage type parking brake cylinders are introduced.

The extracting technique and method of three dimension geology display are expatiated upon with multi-source data including remote sensing,airborne gamma-ray energy spectrum,gravity,magnetic survey in this paper.

Combined with the practical example of Yantai Laishan Airport Rebuilding and Extension Project, the article analyzes the characteristics of the engineering construction without suspending air, considers that the construction organization of the project without suspending air should adjust the unreasonable design scheme from the study of the design scheme.