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单词 lee de forest
释义
Lee De Forest
nnoun.personUnited States electrical engineer who in 1907 patented the first triode vacuum tube, which made it possible to detect and amplify radio waves (1873-1961)
Synset:De Forest Father of Radio Lee De Forest
Instance Hypernyms:electrical engineer artificer discoverer inventor
Inherited Hypernyms:de forestelectrical engineerengineerpersoncausal agentphysical entityentity
Inherited Hypernyms:de forestelectrical engineerengineerpersonorganismliving thingwholeobjectphysical entityentity
Inherited Hypernyms:de forestinventorcreatorpersoncausal agentphysical entityentity
Inherited Hypernyms:de forestinventorcreatorpersonorganismliving thingwholeobjectphysical entityentity
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更新时间:2024/11/11 9:56:33