Rvesearch on the evolution of spatial structure for urban retail business Research on the evolution of spatial structure of three major urban agglomerations in China Research on the evolution of governance structure after family firms IPO Research on the evolution of spatial structure of Chinese province tourism by the disequilibrium perspective Research on the evolution of spatial stucture of Chinese province tourism by the disequilibrium perspective 并列题名：Research on the evolution of spatial structure of Chinese province tourism by the disequilibrium perspective Research on the evolution of urban space based on urban modeling and simulation Research on the transformation of corporate governance of Chinese family business 并列题名：Research on the evolution of spatial stucture of Chinese province tourism by the disequilibrium perspective Research on the application of spatial information technique in urban planning