The hazard depends both on the intensity of the noise and the duration of the exposure.

其危害程度取决于噪音强度大小和接触时间的长短。

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The results show that the usual uniform models may underestimate the earthquake hazard and result in the reduction of the areas of high intensity.

研究结果表明，一般使用的均匀分布模型会低估地震危险性结果，导致高烈度分区的面积缩小。

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Accident tree analysis is applied to risk analysis and a mathematical model is established, including fire model, effective release rate model, heat intensity threshold and hazard area equation.

采用事件树分析法进行风险分析并建立了数学模型，包括火灾模型、有效释放率模型、热强度极限值、危险区域等式四部分。

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