英语词汇concave downward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	concave downward
释义	concave downward 简明释义凹函数：凹函数是指下境图为凸集的一类函数。网络释义 1 ?凹向下的凹向下的
随便看	operating expense book operating expense budget operating expense deduction operating expense ledger operating expense ratio operating expenses operating experience operating experience feedback operating exposure operating face operating facilities operating factor operating failure operating feature operating field operating flexibility operating flexibility of tray operating floor operating floor plan operating flow operating fluid operating fluid loop operating flux operating flux level operating force

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。