Rough surface is easy to generate V shape of stress concentration, which reduce fracture strength.
粗糙表面的晶粒间易产生V形口，导致应力集中，降低了膜的断裂强度。
Well, there's a lot of stress in a Chinese company also, although much of it is below the surface.
在中国公司里也有许多压力，尽管这些压力不那么表面化。
Well, there's a lot of stress in a Chinese company also, although much of it is below the surface.
在中国公司里也有许多压力，尽管这些压力不那么表面化。
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