... 两元经济结构 urban-rural dual economy 轻型经济结构 light economic structure 区域经济结构 regional economic structure ...
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The paper analyzes the economic effect in the light of the characteristics of the change in population age structure of Gansu province.
本文针对甘肃省人口年龄结构变动特点，分析其经济效应。
The header has advantages of reasonable and compact structure, light weight, high economic returns, high efficiency and energy conservation.
它结构布局合理，结构紧凑重量轻，使用效益好，高效节能。
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