关系型数据是平面的、高度结构化、强类型化、无序的，而XML数据是有序、嵌套的、层次化的、可选类型化的，并且往往不规则且是不完全结构化的。
Relations are flat, highly structured, strongly typed, and unordered while XML data is ordered, nested, hierarchical, optionally typed and often irregular and semi-structured.
分析了某复杂平面不规则高层建筑结构设计及扭转效应的改善。
This paper analyzes the structure design of an irregular high-rise building with complicated plane and the improvement of its torsion effect.
对于平面不规则或考虑温度荷载工况的结构，刚性楼板假定会产生较大误差。
The structure with anomalous plane or calculating temperature load will bring large error when the rigid-floor hypothesis is adopted.
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