直升机着陆的英文

• helicopter landing

• "着陆"英文翻译    landing; land; touch down
• "直升机着陆圆圈航线" 英文翻译 :    helicopter circuit
• "直升飞机着陆场" 英文翻译 :    helistop
• "直升飞机着陆点" 英文翻译 :    helicopter landing site
• "单机着陆" 英文翻译 :    single-plane landing; solo landing
• "飞机着陆灯" 英文翻译 :    aircraft landing lamp; aviation landing lamp
• "毁机着陆" 英文翻译 :    clobber in
• "摔机着陆" 英文翻译 :    crash-landing
• "双机着陆" 英文翻译 :    pair landing
• "直升机" 英文翻译 :    air horse; alh; chopper; dustoff; egg beater; eggbeater; flying balana; flying fishbowl; heliambulance; helicogyro; helicopter (hel); helicopters; helikopter; heliogyro; heliplane; helo; hover plane; html convertiplane; infuriated palm tree; lifting-screw machine; pinwheel; verti flite; whirling-work horse; windmill
• "飞机着陆系统" 英文翻译 :    als || aircraft (automatilanding system
• "飞机着陆指挥" 英文翻译 :    aircraft landing control
• "滑翔机着陆区" 英文翻译 :    glider landing zone
• "机动飞机着陆" 英文翻译 :    maneuverable landing
• "迫使敌机着陆" 英文翻译 :    force an enemy aircraft down
• "摔机着陆地带" 英文翻译 :    crash landing strip
• "直升机；用直升机载送" 英文翻译 :    helicopter
• "a-b直升机" 英文翻译 :    a b helicopters; a-b helicopters
• "（美俚）直升机" 英文翻译 :    chopper
• "矮人直升机" 英文翻译 :    flying machine; gyrocopter
• "贝尔直升机" 英文翻译 :    bell helicopter
• "波音直升机" 英文翻译 :    boeing helicopter
• "补给直升机" 英文翻译 :    supplying helicopter
• "常规直升机" 英文翻译 :    pure helicopter
• "乘直升机" 英文翻译 :    in a helicopter; in ahelicopterr

• The cost function of the optimal control problem is a weighted sum of the squared horizontal and vertical components of the helicopter velocity at touchdown . the control ( horizontal and vertical components of the thrust coefficient ) required to minimize the cost function is obtained using nonlinear optimal control theory
  其次，定义最优控制问题的性能指标为直升机着陆时的水平和垂直速度的加权平方和为最小，并采用一阶梯度算法得到使性能指标最小的控制规律。