阴极射线管的外形图的准备及其部件、连接和量规

[中文适用范围]： 本国际标准为阴极射线管（CRT）、电子管部件、电子管子组件和辅助部件的外形图的制作提供了指导，目的是鼓励在不同国家制作出版物时采用相同的做法。这些建议包含在样本图纸、描述性文本和所需尺寸的表格中。 [外文原描述]： IEC 60139:2000 gives guidance on the preparation of outline drawings of cathode-ray tubes (CRTs), tube components, tube sub-assemblies and ancillary components with the object of encouraging the same practice when publications are prepared in different countries. These recommendations are contained in the specimen drawings, descriptive text and in the tables of required dimensions.