- of, relating to, or operated by electrons emitted from materials at high temperatures: a thermionic valve
| 单词 | thermionic |
| 释义 | Collins Concise English Dictionary © HarperCollins Publishers:: thermionic /ˌθɜːmɪˈɒnɪk/ adj
therm•i•on (thûrm′ī′ən, -on; thûr′mē ən),USA pronunciation n. [Physics.]
therm′i•on′i•cal•ly, adv. |
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