把喷胶喷在夹板上，找个人打下手一起把聚酯薄膜平整地贴到夹板的一端，用油漆辊子推向打下手的人那一边，把气泡从那头挤出来。
Just use spray adhesive on the plywood and, with the help of another person, lay it flat on one end and use a paint roller to work out air bubbles toward the other person as they hold their end up.
采用原子力显微镜（AFM）观察了薄膜的表面形貌，结果显示其表面较为平整。
Smooth surface morphology of the films was observed by atom force microscope(AFM).
但是薄膜厚度的增大和浓度的提高会恶化膜面的平整度，也会影响薄膜的结晶性能。
But too high thickness and high density of tin films will do harm to the smoothness of film surface with impurity deteriorating the crystallization.
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