fractional-N小数分频fractionaladj.微不足道的；断片的；分数的；小数的fractional order calculus分数阶微积分fractional transformation分数变换fractional-order system分数维fractional pigment volume颜料体积分fractional neutralization分级中和,分步中和fractional centrifugation分部离心分离法fractional volatilization分级挥发fractional crystallizaton分段结晶fractional reserve banking部分准备金银行制度fractional spline wavelets分数阶样条小波