单词	action of a group
释义	action of a group 群（的）作用
随便看	means mean space mean square mean-square approximation mean-square consistent estimator mean-square contingency mean-square continuous mean-square convergence mean-square deviation mean-square differentiation mean-square error mean-square limit mean-square regression mean-square value mean surface mean tangent diameter mean term mean term of proportion mean time mean time between failures mean transmission rate mean type mean unbiased estimator mean value mean-value characterization

数学辞典收录了72750条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。