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关于各类技术文件的更改问题,在 WJ 7—95《产品设计文件的更改办法》和 WJ/Z 21—95《工艺文件的更改办法》中,就更改的程序、标记及一般方法作了明确的规定,对规范企业行为有着十分重要的指导作用。但在具体实施过程中,由于更改的情况千差万别,远比标准中所列图例复杂,那么,更改时,哪些内容是应当划掉的,由于缺少明确的规定,往往随意性很大。例如,尺寸(?)50H8,需更改为(?)50G8,常常会出现如图1所列的不同改法。
Regarding the changes of various types of technical documents, the procedures, notations and general methods for the changes have been clarified in WJ 7-95, “Modification of Product Design Documents” and WJ / Z 21-95 “Modification of Technological Documents” The provisions of the regulation of corporate behavior has a very important guiding role. However, during the implementation process, because the changes are very different and far more complex than the standards listed in the standard, then what should be crossed when the changes are made is often arbitrary because of the lack of explicit provisions. For example, the size (?) 50H8, need to be changed to (?) 50G8, often appear as shown in Figure 1, a different change method.