In case of trouble, a pilot pushes a button to begin sending down data, and in some conditions, like the failure of autopilot, the data streams automatically.

遇到问题时，飞行员按下按钮就可以开始发送数据，在某些情况下，比如自动驾驶系统出故障时，飞机会自动传输数据。

youdao

In case of trouble, a pilot pushes a button to begin sending down data, and in some conditions, like the failure of autopilot, the data streams automatically.

遇到麻烦时，飞行员一按键钮就可以开始下传数据，在某些情况下，比如自动驾驶系统出故障时，飞机会自动开启数据流传输。

youdao