皱（眉）收紧（眉毛）成纹状；
对冲蚀后的涂层进行扫描电镜分析表明，在小攻角下涂层形貌呈犁沟或犁皱形状，大攻角涂层形貌呈凹坑状。
Appearance of coatings is furrow at low Angle of incidence, it is notch at high Angle of incidence through SEM analysis.
对冲蚀后的涂层进行扫描电镜分析表明，在小攻角下涂层形貌呈犁沟或犁皱形状，大攻角涂层形貌呈凹坑状。
Appearance of coatings is furrow at low Angle of incidence, it is notch at high Angle of incidence through SEM analysis.
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