基本解释[化学]幂式衰减英汉例句双语例句Non-parametric estimations reveal that the fat tail of the distribution of stock return satisfies power law decay.非参数估计显示股票收益分布的非正态性及“肥尾”现象，其尾部满足幂律衰减。power-law decay更多例句专业释义化学幂式衰减