1. Arbitrary unitIn science and technology, an arbitrary unit (abbreviated arb. unit, see below) or procedure defined unit (p.d.u. ) is a relative unit of measurement to show the ratio of amount of substance, intensity, or other quantities, to a predetermined reference measurement. The reference measurement is typically defined by the local laboratories or dependent on individual measurement apparatus. It is therefore impossible to compare "1 arb. unit" by one measurer and "1000 arb.
Read “Arbitrary unit” on English Wikipedia
Read “任意単位” on Japanese Wikipedia
Read “Arbitrary unit” on DBpedia
Read “Arbitrary unit” on English Wikipedia
Read “任意単位” on Japanese Wikipedia
Read “Arbitrary unit” on DBpedia
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