“law of retail trade gravitation”的概念、定义、翻译、参考文献-科学参考

单词	law of retail trade gravitation
释义	law of retail trade gravitation Encyclopedia 理学零售业引力模型释 law of retail trade gravitation零售业引力模型以不同商业中心的人口和中心间的距离来衡量商业中心服务范围的经验公式。
随便看	closed point set Closed Population closed power station closed professional sports league closed pseudo-manifold closed quadrature formula closed quantum system closed range theorem closed ray closed region closed reserve system closed resonator closed Riemann surface closed ring closed scheme closed season closed semicircle closed semigroup closed semisphere closed sentential formula closed sequence closed set closed set basis closed-shelf book selling closed shell

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