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图中粉色曲线为梅雨开始日，深兰色曲线为梅雨结束日，红色和棕色直线分别为梅雨开始日和结束日的累年平均值（分别为6月13日和7月9日）
The pink and blue curves show the fluctuations of beginning
and ending dates of Meiyu periods during the past years, the
red and brown straight lines are normals(13 June and 9 July respectively)
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梅雨期天数常年为26天
The normal days of Meiyu period is 26. |
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梅雨量常年为265毫米
The normal precipitation during Meiyu period is 265mm. |
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粉色线条表示历年梅雨量距平百分率变化，兰色为累积距平百分率
The pink and blue curves show respectively the fluctuations
of departure percentage and cumulated departure percentage of
Meilu rainfall amount in Ningbo city. |
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