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18.216.24.36
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2 definitions found

From: Taiwan MOE computer dictionary

 thermionic tube
 真空管

From: WordNet (r) 2.0

 thermionic tube
      n : electronic device consisting of a system of electrodes
          arranged in an evacuated glass or metal envelope [syn: tube,
           vacuum tube, thermionic vacuum tube, electron tube,
           thermionic valve]