Magnetron has filamentary cathode with small time hearting, the shielded cathodic site, liquid and air cooling, and also the filter built - in by radio.是什么意思_Magnetron has filamentary cathode with small time hearting, the shielded cathodic site, liquid and air cooling, and also the filter built - in by radio.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句