A collection of files associated with an access control mechanism such as a password. The mechanisms would, for example, restrict access to highly confidential files or allow public files to be changed by only a small number of users.
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。