异常高温事件增加而异常低温事件减少，暖冬的趋势比较显著；

The extreme hot days increased, while the extreme cold days decreased, and the tendency of warm winter was remarkable.

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本文借助于平稳时间序列的极值分布理论，对南京地区异常低温事件频次和强度建立统计模型。

The statistical model of frequency and intensity of anomalous microtherm events in Nanjing is established by means of the extreme value distribution theory of stationary time series.

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原始镍镀层的(111)和(200)面双织构在低温晶粒异常长大阶段仍存在，但在正常长大阶段逐渐消失。

The original (111) and (200) double fibre texture still exist at low temperature grain growth stage, but diminish gradually at normal grain growth stage.

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