| 单词 | thermionic |
| 释义 | thermionic /.SLNu'omIc; /9mi,amk/ adj of that branch of physics that deals with the emission of electrons at high temperatures. 热离子学的。~ valve (US 美 = ~ tube) n system of electrodes arranged in a glass or metal envelope exhausted of air. 热离子管。 |
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