By means of the conception of "hazard entropy", a new approach for quantitative risk analysis of regional debris flow hazards is brought forward.

借助于“灾害熵”的概念，提出了区域泥石流灾害危险性定量分析的一种新方法。

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On the base of hazard analysis and safety objective and demand, we can do risk assessment to determine unsafe part, so that we can make good safety measure.

在危险分析的基础上，针对安全目标和安全要求进行风险评价，来判定哪个部分是不安全的，从而为我们制定有效的安全措施找到依据。

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Combined the data of 20 mini tailings dams that take out randomly in one area, the hazard of mini tailings dams is analyzed in the way of the analysis of the matrix of risk assessment code.

利用鱼刺图分析了小型尾矿库存在的风险，并结合某地区随机抽取的20个小型尾矿坝的相关数据，通过风险评价指数矩阵法分析了此地区小型尾矿坝的风险，确定了该地区小型尾矿库的风险等级。

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The Environmental Protection Agency calls radon "extremely toxic, " and the Harvard Center for Risk Analysis in 1998 listed it as the most frequent cause of premature death from a hazard in the home.

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