航向

The captain ordered a change of tack.

船长下令改。

The old helmsman brought us about and we avoided a dangerous dash against the rocks.

老舵手掉转了船的, 我们才避免了一次撞击礁石的危险。

The course which will cut each meridian at the same angle is termed a rhumb line.

与每一子午线相交成一角度的叫恒线。

Meanwhile, gyroscope and odograph transfer course angle and distance respectively to the computer by serial port.

时，陀螺，里程表等也将目标的信息和运行距离结果通过串口传到计算机。