英语词汇thermionic valve的意思、用法及释义-英汉双解词典

单词	thermionic valve
释义	thermionic valve (US ,thermionic `tube), vacuumtube in which a flow of electrons is emitted by heated electrodes, used in the receiving of radio signals, etc 热离子管.
随便看	safety curtain safety glass safety island safety lamp safety match safety net safety-pin safety razor safety-valve saffron sag saga sagacious sagaciously sagacity sage sage-brush sagely Sagittarian Sagittarius sago sahib said sail sailboat

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