After getting the relatively accurate static stiffness of groundsill, the soil-frame structure dynamics interaction is studied by the simplified method in the 4th chapter.
在得到比较精确的地基静刚度后，本文通过第四章中的简化算法求解了地基与结构的动力相互作用。
From the 4th chapter to the 8th chapter, the paper introduced the methods and tools, the analysis of user need, system analysis and design, programming and the test job of the software development.
论文的第四章到第八章介绍了软件开发方法和工具、用户需求分析、系统分析与设计、编码实现和软件测试等工作。
The 4th chapter Shandong unicom company migration value-added service marketing strategy design.
第4章山东联通移动增值业务营销策略设计。
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