基本解释低峰态英英字典柯林斯英英字典 (of a distribution) having kurtosis less than 3, less heavily concentrated about the mean than a normal distribution &rarrcompareleptokurtic ,mesokurtic platykurtic剑桥字典platykurtic柯林斯字典专业释义航空、航天科学技术平顶峰度