Recently, from the observed data in different wave bands and different time intervals many people have obtained an 152-day-158-day periodicity of solar flare activity.
近年来，许多人分别从不同波段，不同时段的观测资料，得到太阳耀斑活动存在152天—158天的周期。
It is a convenient method to estimate design wave parameters by utilizing calculation chart for wind wave factors in case there is no observed hydrologic data at engineering site.
在缺少海洋水文观测资料的情况下，利用风浪要素计算图确定风浪尺度是工程人员推算设计波浪的简便方法。
This paper briefly analyzes the fuzziness of observed sea wave data. The fuzzy classification statistical method is used to process the observed data.
本文简要分析了海浪观测资料本身所存在的模糊性，针对这种模糊性，对海浪观测统计资料进行了模糊分级统计处理。
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