“symmetric block design”的概念、定义、翻译、参考文献-科学参考

单词	symmetric block design
释义	symmetric block design Encyclopedia 理学组合设计释 symmetric block design对称设计参数为-设计是一个序偶，式中是元集合，是的个子集（区组）构成的集合，满足包含的区组恰有个，的任意点对恰被包含在个区组中。此设计又称平衡不完全区组设计，简记为。当（或）的BIBD设计，简称对称设计，记为。 Mathematics ＞组合数学、组合设计与图论＞组合设计＞释义 symmetric block design对称区组设计 symmetric block design对称区组设计^†
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