单词：quasiconcave
adj. 〔数〕拟凹的
单词：quasiconcave 相关文章
by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?
发表于:2018-12-07 / 阅读(122) / 评论(0)
数学英语
数学英语
This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.
发表于:2019-01-08 / 阅读(158) / 评论(0)
Scientific American(十)月
Scientific American(十)月
汉字是由笔画构成的。笔画是书写工具在书写面上的运动，大概有三十种不同类型，有些是基本笔画，有些是复杂笔画。笔画对学习汉字以及书法都有重要作用。下面分别说明。注意，笔画的
发表于:2019-02-14 / 阅读(99) / 评论(0)
英文语法词汇
英文语法词汇