IEC 60027-2-2019 电工技术用字母符号--第2部分:电信和电子学 Letter symbols to be used in electrical technology – Part 2: Telecommunications and electronics

This part of IEC 60027 is applicable to telecommunications and electronics. It gives names and symbols for quantities and their units.dition 4.0 2019-01 INTERNATIONAL STANDARD NORME INTERNATIONALE Letter symbols to be used in electrical technology – Part 2: Telecommunications and electronics Symboles littéraux à utiliser en électrotechnique – Partie 2: Télécommunications et électronique IEC 60027-2:2019-01(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright ？ 2019 IEC, Geneva, Switzerland All rights reserved. Unless ot