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abstraction > mathematical concept > unit > SI unit > derived SI unit > named derived SI unit > lumen |
lumen comparison table |
Subject | is an instance of | has base unit | has unit | represent | is a kind of | has symbol |
---|---|---|---|---|---|---|
named derived SI unit | defined in terms of the seven SI base units via a system of quantity equations | defined in terms of derived SI unit via a system of quantity equations | derived SI unit | |||
lumen | named derived SI unit | m2·m-2·cd = cd | cd·sr | luminous flux | lm |
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