As an attosecond ultrafast modulation process, SFPB can be extended intrinsically to any sum-frequency of energy-levels.

SFPB作为一种阿秒超快调制过程，从理论上说它可以扩展到任何和频能级系统。

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Experimental results showed that SFPB treatment can prepare a nanocrystalline layer with the removal of material and increase of surface roughness.

结果表明：超音速微粒轰击在表面形成纳米层过程中使材料发生流失和表面粗糙度增大。

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