Standardized the wind speed by Rayleigh frequency distribution, a concept named equivalent wind speed was presented;

利用风速频率瑞利分布对平均风速进行均一化，提出相当风速的概念；

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Standardized the wind speed by Rayleigh frequency distribution, a concept named equivalent wind speed was presented;

利用风速频率瑞利分布对平均风速进行均一化，提出相当风速的概念；

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