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abstraction > mathematical concept > unit > non SI unit > bel |
bel comparison table |
Subject | has value in SI unit | is an instance of | is a kind of | has symbol | has definition |
---|---|---|---|---|---|
non SI unit | unit | not an SI unit, but an important and widely used unit | |||
bel | (1/2) ln 10 Np | non SI unit | B |
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