A GIF graphic which has one colour designated as a transparent colour. For example, when a browser displays this type of graphic, the colour becomes the same as the browser background and hence provides a transparent effect.
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。