论文部分内容阅读
目前市售的磁带有表1示出的普通档(Ⅰ型)到金属档(Ⅳ型)四种。这次测定的是(如表2所示)来自8个公司,19种具有代表性的Ⅰ型磁带(C-60)。
The currently available tapes are shown in Table 1 of the ordinary file (type Ⅰ) to the metal file (type Ⅳ) four. This measurement (as shown in Table 2) was from eight companies and 19 representative Type I tapes (C-60).