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单词
beam-power tube
释义
WordReference Random House Unabridged Dictionary of American English © 2024
beam
′
-pow•er tube′
(bēm
′
pou′ər),
USA pronunciation
[
Radio.
]
Radio and Television
a vacuum tube in which the stream of electrons flowing to the plate is focused by the action of a set of auxiliary, charged elements, giving an increase in output power.
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更新时间:2025/12/20 6:15:45