calibration flight route

例句：

1. 1. The aviation company uses calibration flight routes to ensure the safety of its passengers.
   这家航空公司使用校准飞行路线来确保乘客的安全。
2. 2. During the test flight, the pilot used calibration flight routes to avoid obstacles in the airspace.
   在试飞期间，飞行员使用了校准飞行路线来避开空中的障碍物。
3. 3. The aviation authorities are conducting a thorough calibration flight route check to ensure compliance with regulations.
   航空当局正在进行彻底的校准飞行路线检查，以确保遵守规定。