介绍了潜在危害性指数法的基本原理和计算公式。

The fundamental principle and calculation of potential hazardous index method were introduced.

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它着眼于地震灾害危害性在一个城市内空间分布上的不均匀性，以综合的、层次的指数体系来揭示出城市内各局部区域间危害性的相对水平及其形成原因。

This composite and hierarchical index focuses on the spatial imbalance of the earthquake disaster risk within a megacity, and gives the relative risk level among the local areas of the city.

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