The A350 is amazing, in the (unlikely) event of both engines stopping, the aircraft will  automatically start the auxiliary power unit, put the aircraft into a descent and begin Wind-milling  start attempts on both engines.

A350 是惊人的， 在（不太可能）两个引擎都停止的情况下，飞机将自动启动辅助动力装置， 使飞机下降并开始尝试在两个引擎上进行风车启动。