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                There was a whine of hydraulics as the undercarriage locked into position.随着液压系统嘎吱一声响,起落架进入了锁定位置。The undercarriage on light aircraft does not always retract in flight.轻型飞机飞行时起落架不一定缩回.A kind of cutter undercarriage mechan... 
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                undercarriage的复数形式为:undercarriages... 
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                undercarriage的音标:undercarriage的英式发音音标为:['ʌndəkærɪdʒ]undercarriage的美式发音音标为:['ʌndərkærɪdʒ]...