great-circle bearing

例句：

1. 1. The ship's great-circle bearing is 35 degrees north of the equator.
   这艘船的大圆航线北纬35度。
2. 2. The pilot adjusted the plane's great-circle bearing to align with the magnetic compass.
   飞行员调整了飞机的大圆航线，使其与磁罗盘对齐。
3. 3. The navigational charts show the great-circle bearing for the next city on the map.
   导航图显示了地图上下一个城市的大圆航线。