复合材料界面结构由芯材扩散层、激冷凝固层、方向性生长层和胞状晶粒层组成。

The interface structure of composite consists of core material diffusion layer, chilling solidified layer, directional growth layer, and cellular granular layer.

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刨出极精细的部分制作端面晶粒胶合板，背面衬上一层报纸，作为器具的装饰成分。

Extremely fine sections are then planed to produce the end-grain veneers, which are backed with paper and applied as a decorative element to utensils.

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结果表明，随着电流密度的增加，电沉积的锡晶粒度逐渐细化，合金层的晶粒度有变粗的趋势。

The results show that the grain size of tin gradually gets smaller while that of alloy layer gets bigger and bigger with the increasing of current density.

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