本标准中列出的缩写和首字母缩写，以下简称“缩写”，用于工程图纸和相关文件。Y14。38是Y1的重新定义。1.

The abbreviations and acronyms, hereinafter referred to as "abbreviations," listed in this Standard are used on engineering drawings and related documentation.Y14.38 is a redesignation of Y1.1.