Then, the distribution parameters of the probability model are amended using the small sample of the measured highest flood water level of last 10 years.
再利用后10年的实测最高洪水位的小样本，对模型的分布参数进行了修正。
South Africa raised the flood-warning level for its central Orange River area today as water levels in places were expected to reach the highest since 1996.
南非提高了洪水警报级别，奥兰治河水位已经达到了自1996年已来的最高位。
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