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单词
vacuum tube
释义
vacuum tube
noun
a sealed glass tube containing a near-vacuum which allows the free passage of electric current
真空管, 电子管。
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lungfish
lungful
lungi
lungless
lungless salamander
lungworm
lungwort
lunisolar
lunitidal
lunk
lunker
lunkhead
lunula
lunular
lunulate
lunule
Luo
Luoyang
lupara
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Lupercalian
lupin
lupine
lupoid
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更新时间:2026/9/2 19:48:28