HD 245.3:2001被替代
Letter Symbols To Be Used In Electrical Technology - Part 3: Logarithmic Quantities And Units
出版：European Committee for Standards - Electrical
专家解读视频
Applies to logarithmic and units.
Renumbers and supersedes HD 333 (07/2004)
SS IEC 60027-3 Ed. 2 (2004) - Identical
DIN 5493 (1982-10) - Similar
IEC 60027-3 Ed. 3.0 - Identical
UNE 21405-3:1994 - Similar
I.S. HD 245.3S3 - Identical
DIN 5493-1 (1993-02) - Identical
SN HD 245.3:2001 - Identical
