[電學(xué)] 電子束轉(zhuǎn)換管,脈沖計數(shù)器 electron beam counter tube: 電子束計數(shù)管electron-beam counter tube: 電子束計數(shù)管; 計數(shù)開關(guān)管beam switching tube: 射束轉(zhuǎn)換器; 射線開關(guān)管beam-switching tube: 電子束開關(guān)管magnetic beam switching tube: 磁旋管下載手機(jī)詞典可隨時隨地查詞查翻譯