N a tetrode used to generate high power at high frequencies 谐振腔四极管
axial flow resnatron轴向通量分米波超高功率四极管
axial l flow resnatron轴向通量分米波超高功率四极管
axial breeze resnatron轴向通量分米波超高功率四极管
N（名词） a tetrode used to generate high power at high frequencies 谐振腔四极管