Based on the present results of the design factors to piled raft foundation, the optimum design steps are given and verified by an example.
依据对桩筏基础设计参数的研究成果，给出桩筏基础优化步骤和算例的验证情况。
Optimum tolerance design is one of important steps in the process of machine design and manufacture and in the application of computer, and model-building is an important step.
公差优化设计是在机械产品设计和制造过程中的一项重要内容，而在计算机应用中， 建模也是一个重要的步骤。
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