However, it is observed by scanning electron microscope (SEM) that the ultrasonic process results in etching effect on wool scales, thus damaging them to certain extent.
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- 同时,通过SEM观察洗净毛,发现超声波洗毛对羊毛的鳞片有刻蚀作用,鳞片受到一定程度的损伤。