The effect of discrete degree of node location imperfection on the critical load of spatial grid structure was studied through the parameter analysis of deviation discrete degree.
通过关于偏差离散度的参数分析方法，研究节点位置缺陷变离散度对空间网格结构临界荷载的影响规律。
The result of analysis shows the spatial effect is very obvious. And its stress state is reasonable.
分析结果表明该桥的空间效应比较明显，在恒载作用下桥梁的受力比较合理。
Moreover, this research found that as labor migration of China has significant space conglomeration effect, Spatial Error model is fitter to analysis of this phenomenon than OLS model is.
研究还表明，中国劳动力迁徙具有显著的空间集聚效应，采用空间误差回归模型要明显优于OLS回归模型。
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