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单词
beam tube
释义
beam tube
noun
:
a power amplifier vacuum tube in which the flow of electrons is channeled by means of beam-forming plates and similarly spaced control and screen grids
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cootamundra wattle
cootch
cooter
cooter
cooter grass
cootie
cooty
cop
cop
copa
copa
copacetic
copa de oro
copaene
cop a feel
copaiba
copaiba
copaiba balsam
copaiba oil
copaiba resin
copaifera
copain
copaiva
copaiye
copaiye family
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更新时间:2026/3/18 19:24:30