英语词汇“thermionic valves”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	thermionic valves
释义	thermionic valves 基本英英医热离子管,热电管热阴极整流管原型thermionicvalve的复数名词 thermionic valve: electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
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