升力

• Looking at the lift formula , you can see thatlift and drag vary directly with the density of air
  你只要看一看升力公式就可以了解升力和阻力与空气密度成正比。
• Using modularization theory , computer program including lifting method and quasi - three - dimensional method is designed
  编制了升力法和准三维方法的计算程序。
• In the flying wedge each bird is in position to get a lift from the current left by the bird ahead
  在飞行的楔行队列中，每一只大雁都得到前面的雁产生的气流的升力。
• You feel the lift decreasing so you apply more right hand brake to one side to run back into it
  你感觉到这升力减少，所以你使用更多右手煞车以便从一侧切回到它里面。
• In the flying wedge , each bird is in position to get a lift from the current left by the bird ahead
  在飞行的楔行队列中，每一只大雁都得到前面的雁产生的气流的升力。
• These hinged flight surfaces could deflect airflow to modify the lift , thereby supplying roll control
  这些以铰链连接的飞行翼面能够偏转气流以调整升力，进而控制滚转。
• Design , install and test the lift sensor of the lift feedback part , and test the lift signal . 4
  对升力反馈部分进行设计，安装、测试升力传感器，并对升力信号进行测试。
• To produce lift , helicopters rotate their blades and airplanes move their wings through air
  直升机靠著螺旋桨旋转而飞起，飞机则靠著改变机翼与气流接触的角度来产生升力。
• The forces acted on the bubbles are drag , virtual mass , lift , wall lift , pressure gradient , and gravity
  气泡受力包括相间阻力、虚质量力、升力、壁面升力、压力梯度和重力等。
• Modern aircraft are so heavy that the wings must develop a very large lift force in order to sustain the aircraft
  现代的飞机很重，机翼必须产生很大的升力才能保持在空中飞行。