“乌尔城”的概念、定义、翻译、参考文献-科学参考

单词	乌尔城
释义	乌尔城 Encyclopedia 工学〔中世纪以前﹞释 Ur乌尔城两河流域上的苏美尔人的古都。建城历史可追溯到公元前5000年。
随便看	ratio control system ratio data ratio distribution ratio enhancement ratio ergodic theorem ratio-ergodic theorem ratio error ratio estimate ratio estimator ratio imputation ratio level ratiometer rational rational action rational action paradox rational agent rational amicable pair rational appeal advertisement rational approximation rational approximations of algebraic numbers rational architecture rational basis rational Bezier curve rational Bezier curve and surface rational Bezier surface

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。