cpmm meaning in English
磁带成组编码方式246
Examples
- 9 - track , 12 . 7 mm wide magnetic tape for information interchange - format and recording using group coding at 246 cpmm
信息交换用9磁道12 . 7mm磁带. 246cpmm分组编码格式和记录 - 9 - track , 12 . 7 mm wide magnetic tape for information interchange - format and recording , using phase encoding at 63 cpmm
信息互换用9磁道磁12 . 7mm带. 63cpmm相位编码的格式和记录 - 1 2 . 1491cpmm 37981cpi . information systems - magnetic tape and cartridge for information interchange - 18 - track , parallel , 1 2 inch 12 . 65 mm , 37 871 cpi 1491 cpmm , group - coded - requirements for recording
信息系统.信息互换用的磁带和盒式磁盘.群码的， 18道.并行. 12 . 65mm