释义 |
atomic number 14 基本英英 英Noun: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
Noun: 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 |