3.81mm宽调相记录盒式磁带3.81mm宽调相记录盒式磁带Information processing--Information interchange on width of 3.81mm magnetic tape cassete at 4 cpmm,phase encoded at 63 ftprad
信息处理 数据交换用七位编码字符集及其七位与八位扩充在3.81mm盒式磁带上的实现方法
Information processing--Implementation of the 7-bit coded character set and its 7-bit and 8-bit extensions on 3.81mm magnetic tape cassette for data interchange