英语词汇“Electrical-topic vacuum tube”的意思、释义、用法及双语翻译-时代网

词汇	Electrical-topic vacuum tube
释义	请查阅词条:vacuum tube
随便看	Geology-topic sedimentary Geology-topic sedimentation Geology-topic sedimentation Geology-topic seismic Geology-topic seismic Geology-topic seismograph Geology-topic seismograph Geology-topic seismology Geology-topic seismology Geology-topic settlement Geology-topic settlement Geology-topic shale Geology-topic shale Geology-topic shelf Geology-topic shelf Geology-topic shingle Geology-topic shingle Geology-topic silica Geology-topic silica Geology-topic silicate Geology-topic silicate Geology-topic silt Geology-topic silt Geology-topic slate Geology-topic slate 危坐危城危境危如累卵危害危局危岩危怖危急危急存亡危急存亡之秋危患危情危惧危房危改危机危机四伏危楼危殆危浅危然危石危笃危耸

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