Notice that the surface of the lens cover and no sample cleaning. Ultrasonic treatment with wokong hard coat floor., doing the preteat (120mA, time 45 sec, 350V) section also looks like? will have the remain of the plaque, making it hydrophobic surface of sample lens does not have a smooth and uniform surface of the sample is the same as that used by covering the lens and clean it with a. ultrasonic.
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