Secondly, through empirical analysis of spatial econometric model panel found that wheat acreage in influencing macro factors, the importance of natural factors decreased.
第二，通过空间面板计量模型实证分析发现，在影响小麦种植面积的宏观影响因素中，自然因素的重要程度明显下降。
Considering spatial spillover effects of outputs and inputs, a modified knowledge production spatial panel data model is established.
在综合考虑知识产出和投入空间溢出效应的基础上，构建了改进的知识生产空间面板数据模型。
Panel data model is a roper method for investigating the influencing factor and driving mechanism of spatial pattern change of grain production.
面板数据模型是探讨粮食生产空间格局变化的影响因素与驱动机制的适宜方法。
Based on the assumption that the floor is infintely rigid in different areas and that the spatial corridors can be modeled as an elastic beam, a composite rigid panel series model is presented.
在楼扳分区刚性假定的基础上，以弹性变形梁模拟空中连廊的变形，建立了时程分析的复合刚片系振动模型。
Based on the assumption that the floor is infintely rigid in different areas and that the spatial corridors can be modeled as an elastic beam, a composite rigid panel series model is presented.
在楼扳分区刚性假定的基础上，以弹性变形梁模拟空中连廊的变形，建立了时程分析的复合刚片系振动模型。
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