英文字典中文字典51ZiDian.com
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SI 音标拼音: [s'i] 系统信息程序 系统资讯程式 Si n 1: 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 [synonym: {silicon}, {Si}, {atomic number 14}] 2: 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); "Today the United States is the only country in the world not totally committed to the Systeme International d'Unites" [synonym: {Systeme International d'Unites}, {Systeme International}, {SI system}, {SI}, {SI unit}, {International System of Units}, {International System}] 3: the syllable naming the seventh (subtonic) note of any musical scale in solmization [synonym: {ti}, {te}, {si}] Si \Si\ [It.] (Mus.) A syllable applied, in solmization, to the note B; more recently, to the seventh tone of any major diatonic scale. It was added to Guido's scale by Le Maire about the end of the 17th century. [1913 Webster] Maffioso \Maf`fi*o"so\, Mafioso \Ma`fi*o"so\, n.; pl. {-si}. [It. maffioso.] A member of the mafia. [Webster 1913 Suppl.] |
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