zero calibration transponder

例句：

1. 1. The zero calibration transponder was used to monitor the satellite's position.
   使用零校准转发器来监测卫星的位置。
2. 2. The zero calibration transponder was crucial for maintaining the satellite's accuracy.
   零校准转发器对于保持卫星的准确性至关重要。
3. 3. The zero calibration transponder was designed to ensure the satellite's stability during launch.
   零校准转发器被设计成确保卫星在发射过程中的稳定性。