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Event tree method is a common method of dam risk analysis.
事件树法是目前通用的一种大坝风险分析方法。
youdao
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Event study method and regression analysis were employed.
研究方法：事件研究法和回归分析。
youdao
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Event study method and regression analysis were employed.
研究方法：事件研究法和回归分析。
youdao