“U-statistics”的概念、定义、翻译、参考文献-科学参考

单词	U-statistics
释义	U-statistics Encyclopedia 理学【核心概念】释 U-statisticsU统计量设都是维随机向量，为不超过的自然数，是变元的波莱尔（Borel）可测函数，此处每个都在维欧氏空间上取值。要求是对称函数，即对的任意置换成立。令：则称是以为核的，基于的U统计量。
随便看	Grassland Protection Volume II—— Grassland Entomology grassland quadrat survey grassland quality improvement grassland raptors grassland reclamation grassland regeneration sowing grassland regionalization grassland reptiles grassland reseeding grassland Resources grassland resources grassland resources divisions grassland resources monitoring grassland resources of China grassland restoration grassland restoration engineering grassland rodent pest biological control grassland rodent pest ecological management grassland rodent pest integrated management, grassland rodent pest monitoring grassland rodent predators grassland rodents control grassland runoff aggregate measures Grasslands and Forage Abstracts grassland sand prevention

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。