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Definitions of the SI units - NIST

second (angle), ', 1 ' = (1/60) ' = ( pi /648 000) rad ; liter, L · 1 L = 1 dm 3 = 10 -3 m ; metric ton · t, 1 t = 10 3 kg ; neper, Np, 1 Np = 1 ; bel · B · 1 B = (1/2) ln ...

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