the suspending medium has such viscoelastic properties, that flowing the suspension in the channel directs at least some of the particles towards a focus region, enclosed in said certain volume.
所述悬浮介质具有这样的粘弹性,使得所述悬浮液在通道中流动将颗粒中的至少一些向在所述一定体积中包含的聚集区域引导。