文章在对西部铁路项目进行定量模型分析的基础上，利用点轴理论、增长极原理以及相关区域经济理论对社会效益进行定性分析。
In this paper, a quantitative model of the railway project based on the analysis, using the point-axis theory, growth pole theory and regional economic theory to analyze social benefits qualitatively.
城市作为国家和区域经济的增长极，应该以追求效率为目标。
As the growth pole of a country or a region, urban areas should always pursue economic efficiency.
园区经济已经成为地区经济新的增长点和区域经济的重要增长极。
Nowadays, the park economy has been a new source of regional economic growth and an important regional growth polarity.
因此充分认识中小城市在增长极战略中的作用，并制定有利于其充分利用增长极对区域经济推动力的政策是十分必要的。
Therefore, it's necessary to consider the role of the small and medium-sized cities, and map out developing policies to favor them.
因此充分认识中小城市在增长极战略中的作用，并制定有利于其充分利用增长极对区域经济推动力的政策是十分必要的。
Therefore, it's necessary to consider the role of the small and medium-sized cities, and map out developing policies to favor them.
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