vacuum tube
短语[医] 真空管
发音
其它
词形变化
vacuum tubes
复数
vacuum tubes
别名
VT
释义与例句
n.
-
1.
A type of electron tube that controls electron current through vacuum between electrodes within a sealed container, usually of glass or metal and often designed to be easily installed in and removed from the equipment in which it is used.
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电子管
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