An experimental design in which every level of one variable occurs in combination with every level of every other variable. An example is a randomized block design, in which each treatment occurs once within each block. See also nested design.
科学参考收录了60776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。