标准摘要
[中文适用范围]： 包括通用轮毂和卷轴的尺寸，中心孔为 76 毫米（3 英寸），设计用于在互换仪表应用中与磁带配合使用。 [外文原描述]： Includes the dimensions of general purpose hubs and reels, with 76-mm (3 in) centrehole, designed for use with magnetic tape in interchange instrukentation applications.
英文名称Information processing — General purpose hubs and reels, with 76 mm (3 in) centrehole, for magnetic tape used in interchange instrumentation applications