fan-filter

基本解释

It is a thin type of fan filter unit ,like a screen .This unit has a distinctive function to prevent the infection being speared and to raise the cleanliness in local area .
该装置是一种宛如屏风的超薄型风机过滤装置，对提高局部环境洁净度或预防传染（污染）源扩散具有独特的效果。
The circular symmetric filter bank satisfying reconstruction conditions is designed by genetic algorithm. The 9/7 biorthogonal filter bank is mapped to fan filter bank by the mapping function which derived from the Bernstein polynomial.
文中利用遗传算法设计满足重构要求的圆对称滤波器组,应用伯恩斯坦多项式设计的映射函数将9/7双正交滤波器组映射为扇形滤波器组。
Design of 2-D FIR Fan Filter with Arbitrary Angle
具有任意角度的二维扇形FIR数字滤波器的设计
The infatuated fan stalked the celebrity.
那位着了迷的崇拜者追踪这位名人。
She glanced shyly at him from behind her fan.
她羞怯地从她的扇子后面看了他一眼。