The graphical devices and hyperlinks embedded in a Web page within a Web site or a social media site that provides the visitor with the means whereby he or she can navigate through the site. See also navigation bar.
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。