emergency descent profile 应急下降剖面
descent flight profile 下降飞行航线剖面图
multisegment descent-ascent profile 多段升降航线剖面图
profile descent 剖面下降
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The vertical flight profile was assumed to have three flight segments climb, cruise and descent.
飞机纵向飞行剖面被假定分为三个飞行段：爬升、巡航和下降；
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