| DerivedUnit
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| 1
|
identifier
|
1
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| 2
|
name
|
0..*
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| 2
|
derivationUnitTerm
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1..*
|
- Definition
- Derived units are defined by combination of other units. Derived units are used for quantities other than those corresponding to the base units, such as hertz (s-1) for frequency, Newton (kg.m/s2) for force. Derived units based directly on base units are usually preferred for quantities other than the fundamental quantities within a system. If a derived unit is not the preferred unit, the gml:ConventionalUnit element should be used instead.
Possible Parent Elements
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File:DerivedUnitExamples.jpg
Example documenting mass density measured in kg/m^3
<gml:DerivedUnit gml:id="massDensity">
<gml:identifier codeSpace="mass density"/>
<gml:derivationUnitTerm uom="kg" exponent="1"/>
<gml:derivationUnitTerm uom="m" exponent="-3"/>
</gml:DerivedUnit>
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