This paper provides a practical method which can determine the potential losses and their annual averageexpectancy for a city when it is hit by a destructive earthquake.
本文给出一种分析方法,可用来确定当城市遭遇一定地震烈度时的可能损失和年平均损失期望值。
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Back in the 1840s, life insurance was very important because the averageexpectancy of life was only something like forty-five years, so that meant parents were dying left and right.