英语词汇vacuous subset怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	vacuous subset
释义	vacuous subset 简明释义空子集专业释义 1 数学空子集
随便看	density fluctuation density fluctuation density fluids density, flux density flux density fog density fraction density fractionating density fractionation density function density functional density functional density functional method density functional theory density function ordinates density function density gage density gauge density-governing factor density-governing reaction density gradient density gradient centrifugation density gradient centrifugation density-gradient column density gradient column

英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。