标准摘要
[中文适用范围]： 适用于对数数量和单位。可以用无量纲量的对数表示的量，例如两个同类物理量的比，可以用不同的方式来看待和处理。在很多情况下，不同 [外文原描述]： Applies to logarithmic quantities and units. Quantities that can be expressed as the logarithm of a dimensionless quantity, such as the ratio of two physical quantities of the same kind, can be regarded and treated in different ways. In many cases, differences do not affect practical treatment.
英文名称Letter symbols to be used in electrical technology - Part 3: Logarithmic and related quantities, and their units