“annual tribute”的概念、定义、翻译、参考文献-科学参考

单词	annual tribute
释义	annual tribute Encyclopedia 历史学海外贸易释 annual tribute岁币宋朝作为处理对外关系的措施，通过和议的方式，向辽朝、西夏和金朝缴纳的钱物。
随便看	normal cone normal conformal connection normal congruence normal congruence of lines normal connection normal consolidation normal contact manifold normal continued fraction normal contour normal convergence normal coordinate normal coordinates normal coordinate system normal correction of magnetic field normal correlation normal count approach normal covering normal crossing normal cross-section normal current normal curvature normal curvature vector normal curve normal cycle normal density function

科学参考收录了854744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。