Si

同义
si silicon atomic number 14
词性
n
解释
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
示例
None

同义
international system international system of units systeme international systeme international d'unites si si system si unit
词性
n
解释
a complete metric system of units of measurement for scientists; fundamental quantities are length (meter) and mass (kilogram) and time (second) and electric current (ampere) and temperature (kelvin) and amount of matter (mole) and luminous intensity (candela)
示例
Today the United States is the only country in the world not totally committed to the Systeme International d'Unites

同义
si ti te
词性
n
解释
the syllable naming the seventh (subtonic) note of any musical scale in solmization
示例
None