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Structure optimization and the application of light material and process were the two main ways of integral body lightweight. So the ultra high strength steel was applied to the anterior anti-collision beam of integral body was the aim of the study. In this study, the performance development of frontal impact was taken for the example, the material selected of the lightweight was analyzed, and the...
This paper groups the panel data of rural commodity circulation and rural economic growth of 31 provinces from 1990 to 2008 into three phases and made quantitative analysis of the impact rural commodity circulation on our country's rural economic growth by bring in variable intercept model. The results show that rural commodity circulation can significantly improve rural economic growth and its influence...
In recent years, the research on the routers has paid more attention to improve the router's function and flexibility. According to this principle, this paper gave the formal semantic of component-based reconfiguration router unit's software model. And based on the need of multi-network integration, multi-business integration, this paper gave 3 relationships of the components. Based on these relationships...
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