Part Holonyms:CRT cathode-ray tube electron microscope
Hypernyms:electrode
Inherited Hypernyms:electron gunelectrodeconductordeviceinstrumentalityartifactwholeobjectphysical entityentity
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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