“凹点”概念、定义、翻译-科学时代

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

单词	凹点
释义	数学词汇手册凹点 trough
随便看	standard normal distribution standard normal variable standard normal variate standard number index standard of choice standard of civilization standard of classification standard of conduct standard of cull standard of culture and science quality evaluation standard of daily action for primary school students standard of daily action for secondary school students standard of disclosure standard of food hygiene standard of grading standard of length standard of life standard of living standard of living standard of living standard of living standard of living standard of manual labour course primary school standard of profitability standard of proof