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单词
heptode
释义
hep·tode
\ˈhepˌtōd\
noun
(
-s
)
Etymology:
International Scientific Vocabulary
hepta- + -ode
:
a vacuum tube with seven electrodes including a cathode, an anode, a control grid, and four additional grids or other electrodes
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更新时间:2025/11/22 8:39:57