“宁夏贺兰山国家级自然保护区”的概念、定义、翻译、参考文献-科学参考

单词	宁夏贺兰山国家级自然保护区
释义	宁夏贺兰山国家级自然保护区 Encyclopedia 农学国家级自然保护区释 Ningxia Helanshan National Nature Reserve宁夏贺兰山国家级自然保护区中国以干旱风沙区森林生态系统与珍稀野生动植物资源为主要保护对象的森林生态系统类型自然保护区。地理坐标为东经105°49′～106°41′，北纬38°19′～39°22′。
随便看	approximating rational curves and surfaces by polynomials approximating rational curves by polynomials approximating rational surfaces by polynomials approximating sequence approximating set approximation approximation accuracy approximation algorithm approximation boundary condition approximation by continued approximation by continued fractions approximation by convex sets approximation by defect approximation by diffusion approximation by excess approximation by function of complex variable approximation by interpolation approximation by least squares approximation by linear operators approximation by operators approximation by periodic transformations approximation by polynomials approximation by rational functions approximation by series approximation by splines

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。