The results indicate that the surface etched by acid solution is comparative smooth, the surface filled with the uniform etched pits, and very low reflectance.
结果表明酸溶液腐蚀的硅片表面相对平整，有均匀的腐蚀坑，反射率很小。
The dentate groove is devised which is composed of a series of the etched parallelogram pits in KOH solution.
设计了利用KOH溶液定向腐蚀制作出的平行四边形蚀坑串，所形成的锯齿状沟槽结构来固定光纤。
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