These results are independent of the surface material, and are valid for both sinusoidal and ran- dom rough surfaces.
这些结果与表面材料无关，并且对正弦和随机粗糙表面都是有效的。
The fracture surface is rather rough in sinusoidal vibration, while is smooth in random vibration.
正弦振动断口非常粗糙，而随机振动断口比较平滑。
Measurement experiments of a sinusoidal micro-structured surface are carried out.
进行了正弦曲面的测量实验。
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