“population potential”的概念、定义、翻译、参考文献-科学参考

单词	population potential
释义	population potential Geography The accessibility of people from a given point. population potential, $V_{1} = \sum_{j = 1}^{n} \frac{P_{1}}{d_{i j}} = \frac{P_{1}}{d_{i 1}} + \frac{P_{2}}{d_{i 2}} + \frac{P_{3}}{d_{i 3}} . . . + \frac{P_{n}}{d_{i n}}$ where the population potential (V₁) at point i is the summation (Σ‎) of n populations (j) accessible to the point i divided by their distance (d_ij) to that point. Transport costs may be used instead of distance.
随便看	upper flammable limit upper limit Upper Palaeolithic upper percentage point upper quartile upper sideband upper-tail probability upper triangular matrix upregulation upright fold UPS upsampling upset Upsilon Sagittarii star upslope fog upstream upthrow upthrust uptime Upton Warren UPVC up vector upward compatibility upward continuation upward lightning

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