一种是飞行数据记录器，记录发送到飞机电子系统上的指令；

The first, a flight data recorder, makes a record of instructions sent to a plane's electronic systems;

youdao

一种是飞行数据记录器，记录发送到飞机电子系统上的指令；

The first, a flight data recorder, makes a record of instructions sent to a plane's electronic systems;

youdao