Solar grade silicon(SoG-Si) is not only the basic raw materials of PV industry, but also is the mainly raw materials of semiconductor industry.

太阳能级多晶硅不仅是光伏产业的基础原材料，同时也是提纯制备半导体级硅的主要原材料。

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But how many teenage nerds can make, for instance, semiconductor-grade silicon?

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