The recorders have info about the plane speed, its engines, its cabin pressure and what the crew was saying.
黑匣子中记录这飞机的飞行速度，发动机工作状况，舱内气压和机内工作人员的谈话记录。
Are fixed IG pressure and oxygen content recorders working?
固定式之惰气压力与含氧量记录仪是否运作正常？
Are fixed IG pressure and oxygen content recorders working?
固定式之惰气压力与含氧量记录仪是否运作正常？
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