Повучен
Gives name, symbol and definition for 39 quantities and units of acoustics. Where appropriate, conversion factors are also given.
ПОВУЧЕН
ISO 31-7:1978
ПОВУЧЕН
ISO 31-7:1992
95.99
Повучен
1. 6. 2007.
ПОВУЧЕН
ISO 31-7:1992/Amd 1:1998