英语词汇pumpdown time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	pumpdown time
释义	pumpdown time 简明释义抽真空时间：指在真空系统中，从大气压降至某一特定真空度所需的时间。网络释义 1 ?抽空时间抽空时间
随便看	the ginza the gipsy The Girl Next Door the girl the GISC the gist thegither the glad mitt the glass the glasshouse the glass is half empty the glass is half full the glassy The Glenlivet the glimpse of the moon the glimpses of the moon the gloaming the global economy the global marketplace the global village the globe the gloom the glorious revolution the gloves are off the glow of sunset

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。