SI unit n (Units) any of the units adopted for international use under the Système International d'Unités, now employed for all scientific and most technical purposes. There are seven fundamental units: the metre, kilogram, second, ampere, kelvin, candela, and mole; and two supplementary unit...
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(meter) m 质量(mass) 千克(公斤)(kilogram) kg 时间(time) 秒(second) s 电流(electriccurrent) 安培(ampere) A 热力学温度(thermodynamictemperature) 开尔文(kelvin) K 物质的量(amountofsubstance) 摩尔(mole) mol 发光强度(luminousintensity) 坎德拉(candela) cd 注:1.圆括号()中的名称,是其前的名称的...
The mole is the SI unit of the amount of substance. The mole is defined as the amount of substance that contains as many elementary entities as there are atoms in \(0.012\) kilogram of carbon-\(12\). The elementary entities may be atoms, molecules, ions, electrons, or any other partic...
Base units can be combined to derive units of measurement for other quantities. In addition to the two dimensionless derived units radi
MoleAmount of Substancemol Supplementary Units There are two supplementary units in the international system of units, which are given in the following table ? Supplementary UnitQuantityDescription Radian (rad)Plane AngleOne radian is defined as the plane angle subtended from the center of a circle ...
vacuum during a time interval of 1/299 792 458 of a second."17th CGPM (1983, Resolution 1, CR, 97)1⁄10,000,000 of the distance from the 's equator to the North Pole measured on the circumference through .kg "The kilogram is the unit of mass; it is equal to the mass of the...
(SI) Units SI base units[9] Name Symbol Quantity metre m length kilogram kg mass second s time ampere A electric current kelvin K thermodynamic temperature candela cd luminous intensity mole mol amount of substance A prefix may be added to a unit to produce a multiple of the original unit....
The mole, symbol mol, is the SI unit of amount of substance. The candela, symbol cd, is the SI unit of luminous intensity in a given direction.doi:10.1007/s11018-019-01648-4Measurement Techniques
(Placename) a variant transliteration of the Chinese name for theXi Si the chemical symbol for (Elements & Compounds) silicon SI symbol for (Units) Système International (d'Unités). SeeSI unit abbreviation for (Placename)NZSouth Island ...