waveguide transition

例句：

1. 1. The waveguide transition is crucial for the device's performance.
   波导过渡对于设备的性能至关重要。
2. 2. During the waveguide transition, the signal needs to be carefully controlled.
   在波导过渡期间，信号需要被仔细控制。
3. 3. The design of the waveguide transition plays a vital role in the overall system architecture.
   波导过渡的设计在整体系统架构中起着至关重要的作用。