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单词 electron gun
释义
Electron Gun
nnoun.artifactthe electrode that is the source of electrons in a cathode-ray tube or electron microscope; consists of a cathode that emits a stream of electrons and the electrostatic or electromagnetic apparatus that focuses it
Part Holonyms:CRT cathode-ray tube electron microscope
Hypernyms:electrode
Inherited Hypernyms:electron gunelectrodeconductordeviceinstrumentalityartifactwholeobjectphysical entityentity
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更新时间:2025/1/24 16:42:08