The process that occurs when a document using a set of fonts is required and where one or more of the fonts are not available. A non-available font is substituted by a similar font that is available.
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。