waveguide attenuator

例句：

1. 1.The waveguide attenuator is used to reduce the intensity of the signal.
   波导衰减器用于降低信号的强度。
2. 2.The waveguide attenuator was designed to improve the signal-to-noise ratio.
   波导衰减器被设计用来提高信噪比。
3. 3. The waveguide attenuator is an essential component in the transmission system.
   波导衰减器是传输系统中不可或缺的一部分。