证券市场上收益率分布存在严重的偏峰厚尾现象；

In the security market, return-loss distribution exist the severe phenomenon of excess kurtosis and heavy tail;

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在持续2年的研究中，发现约15%的猪群存在不同程度的咬尾现象。

During the 2-year study period, around 15% of the herds were affected by some level of tail biting.

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与卫生部药品标准方法相比，柱效提高、拖尾现象减小，杂质分离更加有效。

Compared with the current method, this method was better in the column efficiency, less tailing and effective separation of impurities.

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