英语词汇envelope spectrum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	envelope spectrum
释义	envelope — 信封 • 外壳 • 函 • 焘 • 封皮 envelope n — 封套 n • 包络 n spectrum — 波谱
随便看	heavy commercial trucks heavy commercial vehicles heavy commitment heavy competitive pressure heavy components heavy compression heavy computation heavy computer users heavy concentration heavy concrete heavy conditions heavy congestion heavy consequences heavy construction heavy construction equipment heavy construction machinery heavy construction market heavy construction site heavy contamination heavy content heavy corrosion heavy corrosion protection heavy costs heavy cough heavy crane

英汉双解词典包含2273206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。

envelope —