Agreements between the European Union and countries applying to become members. These agreements concern changes in the institutional and legal arrangements required before countries can accede, and provision for trade with them in the meantime.
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。