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Si
英汉字典
英英字典
解释
系统资讯程式;
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