evolvement of spatial structure 空间结构演变
evolvement of industrial structure 产业结构演变
There is scarce study on the evolvement of rural household energy consumption structure in Northern China at present.
目前对中国北方地区农村家庭能源消费结构演变的研究较少。
The study is based on information technology only, but the evolvement of enterprise spatial structure is affected by many factors.
但是，企业空间结构的演变是在多种因素的共同作用之下产生的，信息技术并不是决定因素。
Therefore, this model can be used to estimate the evolvement of the flow structure, which is fundamental to design of industrial reactors.
利用该模型可以获得流动结构的演变规律，可有效进行工业反应器的设计。
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