求翻译：National Bureau of Statistics Rural Investigation Corps task force that the country's Investment policy, distribution policy and a series designed to promote structural reform and economic Development policies of the income gap between urban and rural residents the impact of price scissors between industrial and agricultural products, just as urban and rural China to the ranks of income the impact of the gap, the ultimate commodity exchange through such channels have been integrated into the impact of the dual structure into being. Zhao Wei, Li Shi believes that the mid-20th century, 80 to 90 around the mid-decade-long expansion of income gap between urban and rural residents, to a large extent, the original system with the 'policy inertia' has a close relationship. Lu Ming, Chen Chong used from 1987 to 2001 at the provincial level panel data estimation results show that inter-regional population, household registration transformation, economic openness, non-nationalization and government participation in economic activities are widening the income gap between urban and rural residents of the factor.是什么意思？

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