“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	leasing least absolute deviation estimate least absolute deviation estimator (estimate) least absolute remainder least action least angel regression least angle regession least angle regression least bound least cardinal number least common denominator least common multiple least common multiple matrix least concerned least core least covering least deficient number least developed countries least divisor least element least favorable distribution least favorable prior distribution least fixed point least group congruence least harmonic majorant

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。