Because of use of this model,the automatic distributing water is achieved,the secondary cooling is even homogenization,the surface back temperature of slab is reduced,nondescaling ratio of slab surface is up to 951% and the inner crack ratio of slab is only 36% of waste product.

The design of distribution automation system based on industrial ethernet;

Analysis of distribution automation in urban areas;

Communication modes for distribution automation systems;

After an analysis and research of its counterparts at home and abroad, demonstration for instructing the course of automatic assembly production line of great variety was developed with practical engineering design taken into account.

This paper aims at the large aircraft and its structure characteristics,and by comparing the man assembly system with the machine assembly system and analyzing relation curves of automatic assembly and assembly cost,points out the meaning of automatic assembly technology which ensures long life,high efficiency and low cost of large aircraft structure,both in research and in manufacture.

One of the difficulties in visualized design is the automatic assembly.