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单词 filament-cathode
释义

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filament-cathode
filament-cathode n.
ΚΠ
1966 R. G. Kloeffler Electron Tubes i. 6 Directly heated filament-cathodes require comparatively little heating power and are used in tubes designed for use with dry batteries.
extracted from filamentn.
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更新时间:2024/12/24 9:26:22