The positive and negative spillover inside the industry will affect the validity of the technique diffusion within the urban industrial layout.
行业内正向和负向外溢效应影响城市工业布局中技术扩散的有效性。
So, industry evolution can be transferred to the diffusion of some special organization form.
这样，研究产业演化就转变为研究某种特定组织形式的扩散。
The virus diffusion of fruit tree is very serious, which badly threatens the growth of fruit trees and production of fruit industry.
果树病毒的扩散性很强，严重威胁果树的生长发育和果业生产。
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