vacuum tubes

英美

释义
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- [医] 真空管
英英释义
名词 vacuum tube:

electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
临近单词

vacuum arc vacuum vacuum ultraviolet ray vacuum aluminum bucket vacuum steam stripping vacuum recharging well vacuum sufficient mold vacuum tube Gm-meter vacuum drainage system vacuum insulated panel vacuum sewerage system vacuum melting furnace

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