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单词 acorn tube
释义
Acorn Tube
nnoun.artifacta small vacuum tube; used at high frequencies
Hypernyms:electron tube thermionic tube thermionic vacuum tube thermionic valve tube vacuum tube
Inherited Hypernyms:acorn tubetubeelectronic devicedeviceinstrumentalityartifactwholeobjectphysical entityentity
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更新时间:2024/12/23 22:37:47