So there is always a human safety pilot on board.

因此，飞机上总是有一名人类安全飞行员。

A pilot on the ground will control the plane through its autonomous flight system. Safety pilots will be on the aircraft to make sure everything operates correctly.

地面上的飞行员将通过其自主飞行系统控制飞机。安全飞行员将在飞机上确保一切正常运行。