因此，研究产业结构的差异和变动对技术效率的影响就具有重要的意义。
Therefore, to study the effects of industrial structures differences and changes on technical efficiency is of great significance.
最后，对我国各区域间的技术效率进行收敛性分析，观察并分析各区域间的差异变动趋势。
Finally, we carry on the convergence analysis to the technical efficiency of every region in China and observe and analyze the change tendency of each regional difference.
运用中国乳制品行业1998—2007年的省际面板数据，采用随机前沿生产函数方法分析了中国乳制品行业生产技术效率的变动状况。
The change in technical efficiency of China's dairy industry was analyzed by the stochastic frontier production function with the 1998-2007 provincial panel data of China's dairy industry introduced.
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