A kind of washboard - like crack on steel plate surface is introduced.

文章介绍钢板表面产生的一种搓板状裂纹。

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Smooth flat plate surface, greatly reducing the dust and dirt accumulation.

板面平直光滑，大大减少了灰尘污垢积聚。

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This work is of directive significance to the optimal design and operation of ripple plate surface.

本文工作对于波纹形翅片板翅表面的优化设计具有一定的指导意义。

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Plate tectonics is the area of science that explains why the surface of the Earth changes and how those changes cause earthquakes.

VOA: special.2010.01.12

When this happens, one plate moves past the other, suddenly causing the Earth's surface to split.

VOA: special.2010.01.12

What's more, a machine-made surface produces the wrong kind of friction: to do its job precisely, the plate's surface needs minute scorings, of only a few microns each, where machine oil can reside.

CNN: ASIANOW - TIME Asia | GizmoLand! | Man Beats Machine

The Earth is just too unusual a place, they insisted, with its stable orbit, nearby moon, watery surface, plate tectonics and unique position in the galaxy.

FORBES: We've Got Company

Most photomasks are created by etching away a thin film of light-blocking chrome from the surface of a quartz plate.

FORBES: Trick of the Light