航程线

例句：

1. 1. The pilot navigated the ship through the dangerous straits.
   飞行员驾驶船只穿过危险的海峡。
2. 2. The map shows the route of the flight to the destination.
   地图显示了前往目的地的飞行路线。
3. 3.The navigation system is crucial for safely navigating the ship.
   导航系统对于安全航行船舶至关重要。