| 单词 | ignitron |
| 释义 | Word Frequency ignitron(ɪɡˈnaɪtrɒn, ˈɪɡnɪˌtrɒn) noun a mercury-arc rectifier controlled by a subsidiary electrode, the igniter, partially immersed in a mercury cathode. A current passed between igniter and cathode forms a hot spot sufficient to strike an arc between cathode and anode Word origin C20: from igniter + electron |
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