It shows that the well-known 3 DB gain-bandwidth definition for ordinary helix traveliny wave tube can still be used for super-wide-band traveling wave tube.是什么意思_It shows that the well-known 3 DB gain-bandwidth definition for ordinary helix traveliny wave tube can still be used for super-wide-band traveling wave tube.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句