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Silicon
01
a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
例
The scientist etched a microscopic circuit on a silicon wafer.
The engineer used a laser to etch the silicon wafer with precise lines.
Cosmic dust consists of tiny particles of matter floating in space, primarily composed of elements such as carbon, silicon, and iron.
