当火箭在空中消失时，其发动机的吼声就没有了。
The roar of the engines died out as the rocket vanished into the clouds.
杰克听到发动机悲鸣着尽量让飞机滞空，突然声音消失了，轮胎重重落在跑道上，巨大的冲击力令起落架不堪重负。
Jack heard the engines straining to keep the aircraft aloft. Then they cut out and the wheels slammed onto the runway, too hard for the landing gear to support the impact.
这种消失的观点瓦解了除自利和自助终极目标的理性化算计之外的其他似是而非的动机。
This negative view dismisses alternative plausible motivations beyond self-interest and beyond rational calculation of self-serving ends.
他说，虽然阿桑奇有逃跑的动机与手段，但是如果他真的这样做，他的声誉将在他的支持者中消失。
He said that while Mr Assange might have some incentive and the means to flee, were he to do so, his reputation would be diminished in the eyes of his supporters.
海格用外衣衣袖揩了揩流泪的眼睛，跨上摩托，踩着了发动机，随着一声吼叫，摩托车腾空而起，消失在夜色里。
Wiping his streaming eyes on his jacket sleeve, Hagrid swung himself onto the motorcycle and kicked the engine into life; with a roar it rose into the air and off into the night.
“消失的是那些贷款期限在3至12个月的资金来源，”一名央行银行家说， “而它们正是保持发动机运转的机油。”
"What has disappeared is funding from three to 12 months, " says a central banker. "It is the oil that keeps the engine going.
在发动机药柱的前翼燃烧消失后， 前封头开口区域的切向涡开始变得强烈；
The tangential vortex in the forward opening begins get strong after the forward fins of grain burned out.
在发动机药柱的前翼燃烧消失后， 前封头开口区域的切向涡开始变得强烈；
The tangential vortex in the forward opening begins get strong after the forward fins of grain burned out.
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