本文件旨在为电子行业中常用的术语提供定义。这些定义旨在提供足够清晰的细节，以便将英语作为第二语言的读者能够理解其含义的微妙之处。在单个IPC文件中具有特殊含义或用法的术语在该文件中的定义可能不同。这里没有定义应用于电子产品时不会改变含义的常用英语术语。

This document is designed to provide definitions for terms commonly used in the electronics industry. The definitions are intended to provide sufficient clarity of detail such that a reader utilizing English as a second language could understand the subtleties of the meaning. Terms which have a specialized meaning or usage within a single IPC document may be defined differently within that document. Commonly used English language terms which do not change meaning when applied to electronics are not defined here.