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概述了ＧＢ／Ｔ１４６８９－９３《技术制图图纸幅面和格式》与ＩＳＯ５４５７－１９８０《技术制图──图纸尺寸及格式》和ＧＢ４４５７．１－８４《技术制图图纸幅面及格式》的主要差异；重点介绍了ＧＢ／Ｔ１４６８９－９３的主要内容及贯彻时要考虑或注意的问题，并通过典型图例说明图幅分区代号的实际应用方法。
The main differences between GB / T14689-93 Technical Drawing Layout and Format and ISO5457-1980 Technical Drawing ─ Drawing Size and Format and GB4457.1-84 Technical Drawing Layout and Format are summarized. GB / T14689-93 the main content and implementation to consider or pay attention to the problem, and through the typical illustration of the actual application of map partition code.