A sentinel that occurs at the end of data organized in sequential form, e.g. on magnetic tape. Trailer labels typically include summary statistics of the data, e.g. the total number of records in the file.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。