英语词汇three concave sign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	three concave sign
释义	three concave sign 简明释义三凹征：指眼底检查中出现的一种特殊征象，眼底视网膜上有三个凹陷的区域。网络释义 1 ?三凹征三凹征短语 1 three-concave sign 三凹征
随便看	reversing controller reversing control lever reversing control system reversing correspondence reversing coupling complement reversing current reverse curve reversing cylinder reversing damped condition reversing device reversing device reversing die reversing direction code reverse dog reversing drive reversing drum reversing drum switch reversing dune reversing engine reversing entry reversing eyepiece reversing face reversing facility reversing falls reversing feed

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。