sharp cut-off filter 锐截止滤光片 ; 锐截止滤波器

sharp cut-off pentode 锐截止五极管 ; 锐截止式五极管

sharp cut-off model 锐截断模型

sharp cut-off characteristics 锐截止特性

sharp cut off 锐截止

sharp cut off tube 锐截止管

sharp cut off filter 锐截止滤波器

Sharp Cut-off Radiation Pattern 锐截止方向性图

sharp angle cut-off beam 锐截止光束