关键词：农民工ff6plOUrz14XnTtz3iLh5HoXVB8IqTH+3GmR5uVuaJA=：城市融入；层5x42vm3QW97pdB/QBxx5nONlRMjLMHmVIIKYMKv6+VA=次分析法；模糊理论；神经网络
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