fractional lot不满一百股的零星股票fractionaladj.微不足道的；断片的；分数的；小数的fractional factorial experiment分析因设计方法fractional order differenfiator分数阶微分器fractional lethal concentration部分致死浓度fractional-order differential分数阶微分fractional electrical transport分段电输送fractional free water clearance分馏的游离水清除率fractional-dimension calculus分维微积分fractional time delay estimation非整数时间延迟估计fractional Brownian random field分形布朗随机场fractional linear neural network分式线性神经网络