A part of the London Stock Exchange that dealt in the shares of smaller companies. The USM had less stringent requirements and traded shares in far fewer companies than the main market. It was abolished in 1995.
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。