I couldn ' t find any information on that company ， even though i checked all the cro - references 尽管我查了全部的对照表，仍未找到有关那个公司的资料。
2.
I ' ve a few more points about the use of cro - reference sli and out cards and when to tra fer old material so that the files don ' t become over crowded 还有几点，是有关使用相互参照条和借出卡的问题以及何时转移旧资料以免卷中文件过多的问题。
