1. In sorting, file size; the number of records to be processed by the sort. 在分类过程中，文件长度，即由分类程序处理的记录数目。
2. The processing of data in random order, not subject to preliminary editing or sorting. 未经预先编辑或分类，以任意次序对数据进行的处理的做法。
3. Student achievement management system, including insert, delete, search, sorting and other functions. 学生成绩管理系统，包括插入，删除，查找，排序等功能。
英英解释
n.
1. an operation that segregates items into groups according to a specified criterion
2. the basic cognitive process of arranging into classes or categories
3. grouping by class or kind or size
