The information and comments contained in this foreword should not be considered part of the standard. They have been included ior clwificatioii and guidance. With the advent of Nuinerical Control and the continually increasing use of Numerically Controlied Machine Tools, many people. including control systems builders, Machine Tool builders and users, have realized the importance of a standardized input medium. This is particularly true for the large majority of Numerically Controlled hfachine Tools using perforated tape input.
AIA/NAS NAS 943-1974由美国航空工业协会/国家航天工业标准 US-AIA/NAS 发布于 1974-01-01。
AIA/NAS NAS 943-1974 在中国标准分类中归属于: J00 标准化、质量管理,在国际标准分类中归属于: 21 机械系统和通用件。
AIA/NAS NAS 943-1974 (Rev. 4)1974年8月取代数字控制设备直切及配置格式可变块互换穿孔带标准 [代替: AIA/NAS NAS 955] 于 1974-01-01 变更为 AIA/NAS NAS 955-1974 (Rev. 3)数字控制机可变块互换穿孔带标准。
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