
Letter Symbols To Be Used In Electrical Technology - Symbols Of Quantities To Be Used For Rotating Electrical Machines
出版:Harmonization Documents

专家解读视频
S1 [05/03/1987]
UNE 21405-4:1995 - Similar
UTEC 03 004:1986 - Identical
IEC 60027-4 Ed. 2.0 - Identical
NEN 10027-4:1986 - Identical
CEI 24-2 Ed. 1 (1997) - Identical
IEC 274 - Identical