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单词 thermionic
例句 thermionic
Above the mantel of the lodge's thermionic fireplace was hung a brilliant cascading stereo of Yosemite Falls in misty motion. Deepfreeze
Specially developed diode valves are used as thermionic generators with an efficiency, at present, of only 20% but the heat taken away from the anode is used to raise steam for conventional power generation. The Dawn of Amateur Radio in the U.K. and Greece: a personal view
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更新时间:2025/2/10 9:36:45