A small cathode-ray tube displaying individual characters or messages. VFDs are used, for example, in retail POS terminals and domestic devices such as TV recorders and microwave ovens.
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。