The corresponding measure a library can be taken is to set up the multiple symbiosis interfaces to promote the equilibrium of different symbiosis units so that the core competence of library knowledge alliance can be enhanced.

Build up symmetry,mutual benefit and continuous symbiosis valid mechanism gradually under set question constructing“harmonious China”,based on inside mechanism of the symbiosis,by growing the qualified and equal symbiosis unit,by the path turning excellently the symbiosis medium inside living and outside living.

A study on the space cell and the triangular divide of the torus during the design of packaging structural and modeling was made.

A study on the space cell and the triangular divide of the tore was madeThe principle for showing tore with space cell and triangular devide were given as well as the data structural of the very 3-D modelThe calculation was simplifiedAnd both the ways for defining the quartuple camber on the tore and together line of comberes with the dispersion method were also presented

By the method of transforming the node DOF of the space bar element to the node DOF of the space virtual laminated element,that is,the node of bar element need not fixed on the node of space solid element,the prestressed concrete structure were simulated together.

By the method of transforming the node DOF of the space bar element to the node DOF of the space solid element,the position and direction of prestressed reinforced needn\'t be taken into account,that is,the node of bar element needn\'t be fixed on the node of space solid element.