英语词汇vacuum pre expansion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	vacuum pre expansion
释义	vacuum pre expansion 翻译真空预膨胀以上为机器翻译结果，快速获取精准的人工翻译结果，建议选择有道人工翻译网络释义短语 1 vacuum pre-expansion 真空预发泡
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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。