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词汇
vacuum tube
释义
vacuum tube
Word family
noun
vacuist
vacuum cleanervacuum flask
vacuum tube
vacuum
adjective
vacuum-packed
Related topics:
Electrical
ˈ
vacuum
ˌ
tube
noun
[
countable
C
]
American English
AmE
TEE
a
valve(3)
真空管
Examples from the Corpus
vacuum tube
•
Just another snooty $ 3,000
vacuum tube
amplifier, I thought.
•
The ideal atmosphere for the
vacuum tube
is no atmosphere at all, or a perfect vacuum.
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更新时间:2026/6/13 19:40:26