It is very important to investigate and optimize the directional solidification process to obtain a high purity and integrated ingot.
为了获得高纯度的完整硅锭，探究和优化定向凝固过程非常重要。
Directional solidification process is an important part that of the physical metallurgy of solar energy polysilicon.
定向凝固工艺是物理冶金法制备太阳能级多晶硅的一个重要环节。
Directional solidification process is an important part that of the physical metallurgy of solar energy polysilicon.
定向凝固工艺是物理冶金法制备太阳能级多晶硅的一个重要环节。
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