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 linear displacement分式线性代换fractional horse-power motor分数功率电动机fractional-pel interpolation分像素插值fractional order Chen' s systemfractional order PID controller分数阶PID控制器fractionally-charged particle分数电荷粒子fractional distillation process分馏过程fractional percolation equation分数阶渗透方程fractional examination of utine尿液分段检查fractional examination of urine尿液分段检查