Semiconductor: Class of crystalline solids with electrical conductivity between that of a conductor and an insulator.
半导体：一类晶体材料，其电导率介于导体和绝缘体之间。
The silicon in semiconductor components has to be mono crystalline: it has to have a very pure crystal form without defects in the crystal structure.
硅在半导体元件要单结晶：它需要有一个非常纯净的晶体形式，如果没有缺陷的晶体结构。
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。
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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