...生激烈的舱内减压(Decompression)现象时，为确保乘员安全，须迅速将飞机下降到安全高度不可，故谓之紧急下降(Emergency Descent)。此时可将发动机推力缩小，及操作减速板(Speed Brake)，使飞机能尽速下降。
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Request Emergency Descent 请求紧急下降
emergency descent profile 应急下降剖面
·2,447,543篇论文数据，部分数据来源于NoteExpress
Engine failure, emergency descent, heading 120.
发动机失效，航向120紧急下降。
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All stations, emergency descent between WF and VM, all aircraft below 3900m between WF and VM leave corridor to the east immediately.
各台注意，WF和VM之间油紧急下降的航空器。WF和VM之间所有低于3900米的航空器立即向东离开走廊。
This is hardly surprising, given that an emergency descent can be terrifying if you do not why it is happening or how it is going to end.
BBC: What to do when planes lose pressure
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