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| abstraction > mathematical concept > unit > SI unit > derived SI unit > mass fraction unit |
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| mass fraction unit comparison table | |||
| Subject | is a kind of | has symbol | has definition |
|---|---|---|---|
| derived SI unit | SI unit | ||
| mass fraction unit | derived SI unit | kg·kg-1 = 1 | kilogram per kilogram, which may be represented by the number one |
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