“普拉特指标”的概念、定义、翻译、参考文献-科学参考

单词	普拉特指标
释义	普拉特指标 Encyclopedia 理学文献计量释 Pratt's index普拉特指标度量文献计量学中等级-频次分布的集中程度的指标。
随便看	Beltrami differential equation Beltrami-Enneper theorem Beltrami equation Beltrami field Beltrami formula Beltrami identity Beltrami interpretation Beltrami mapping Beltrami method Beltrami operator Beltrami parameter Beltrami pseudosphere Beltrami system of equations Beltrami theorem belt scale Belt-shaped Radio telescope Beltsville Agricultural Research Center belt transect belt transect method belt transportation inclined shaft belt-type electrostatic separator belt type roasting machine pelletizing process belt type seeder belt vacuum filter belt vessel

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。