As one example, a metallic surface of an implant can be treated to form pits in the surface, followed optionally by a smoothing step to reduce the roughness of the pitted surface.

作为一个例子，植入体的金属性表面可以被处理以在表面内形成凹坑，接着可选地通过光滑化步骤减小所述带凹坑的表面的粗糙度。

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One day, they found an irregularly shaped stone, about the size of a tea tray, its upper surface pitted with small hemispherical holes.

NEWYORKER: The Sanctuary

The Highways Agency has put up a sign warning drivers about the pitted and broken road surface on the southbound carriageway, just after junction 23 at Bridgwater North.

BBC: Condition of M5 near Bridgwater raises concerns