标准摘要
[中文适用范围]： 广泛，涉及从基础理论到实际应用的各个层面，为电气与电子行业的标准化工作提供了基础性指导依据。 ***此介绍可能不准确，请注意参考原文。 [外文原描述]： Defines rules for the use and writing of symbols for general quantities, symbols for quantities concerning two-port networks, symbols for line transmissions of signals (including cables), symbols for radio wave propagation, symbols for quantities concerning waveguide propagation, symbols for aerials (antennas), symbols for electro-acoustics and symbols for equivalent circuits of piezo-electric crystals.
英文名称Letter symbols to be used in electrical technology - Part 2: Telecommunications and electronics