通常指某种结构复杂的电子原件或电子仪器设备，能够对某个系统实行自动控制或自动记录black box

• 两架飞机的“黑箱”记录数据已证明俄罗斯机师无辜。

  The data from the black boxes of the two aircraft has already proven that the Russian pilot is innocent.

• 车子也必须安装类似飞机的“黑箱”以追踪其操作数据。

  Cars must be fitted with black boxes, like those found in aircraft, to track their operations.