rhumb-line sailing

例句：

1. 1. The captain used a rhumb-line to navigate the ship through the stormy seas.
   船长用直尺航行来在暴风雨的海面上导航。
2. 2. They sailed along the rhumb-line to reach their destination.
   他们沿着直尺航线到达了目的地。
3. 3. The pilot followed the rhumb-line to avoid collisions with other ships.
   飞行员遵循直尺航线以避免与其他船只相撞。