In the process, we could observe the effect of carbon and boron on materials, which restrain the crystalline.
在这个过程中可以明显观察到碳, 硼抑制材料晶化的作用。
Pure crystalline boron is a black, lustrous, very hard but brittle semiconductor that does not occur naturally.
纯晶态硼为黑色有光泽的半导体，硬度很高。
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