英语词汇hard tube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	hard tube
释义	Definition of hard tube in English: hard tube noun Electronics A discharge tube with a hard vacuum, or evacuated sufficiently for any remaining gas not to affect its performance. Origin Late 19th century; earliest use found in Science. Definition of hard tube in US English: hard tube noun Electronics A discharge tube with a hard vacuum, or evacuated sufficiently for any remaining gas not to affect its performance. Origin Late 19th century; earliest use found in Science.
随便看	draw to a stand draw together draw to one side draw up draw up draw up draw up a layout of draw up a plan of draw up/in draw upon draw-well dray dray horse dray-horse drayman draymen dray-net drays draža mihailović DRC dread dreadable dreaded dreaded dreader

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Definition of hard tube in English: