第三章研究了用脉冲电化学腐蚀制备均匀发光多孔硅。

In the third chapter Porous silicon was prepared by pulsed and dc electrochemical etching methods under the equivalent etching condition.

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太阳慷慨地给出了它的光和热，发光均匀地在草地上，树上，房子的屋顶上，路过的人，也对我，安静而温柔。

The sun generously gives out its heat and light, shining evenly on the grass, on the trees, on the roofs of houses, on the people passing by, also on me, quietly and tenderly.

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本文采用掺钛化学腐蚀法制备出了发光稳定性和均匀性都较好的多孔硅(PS)。

Porous silicon (PS) with good luminescent stability and homogeneity was fabricated by using a novel titanium-doped stain etching approach.

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