It may obtain a special experiment aerofoil lift-drag force characteristic with this test.

通过本实验，可以测得某一特定实验机翼的升力特性和阻力特性。

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This paper gives the affects of airfoil tailing edge added different dimension and different shape plates on lift-drag and pitching-moment performance of airfoil.

给出了在翼型后缘加不同尺寸和形状的平板对翼型升阻特性和力矩特性的影响。

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The design process of the test-bed of the low speed airfoil lift-drag force characteristic was introduced, and the experimental results of the airfoil were analyzed.

文章详细阐述了低速翼型升阻特性实验台的设计过程，分析了自制翼型的风洞实验结果。

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It will, he claims, have a lift-to-drag ratio eight times better than a jet airliner's, with a consequent saving in energy.

ECONOMIST: Maglev trains

And it will help lift a decades-long drag on our economy.

WHITEHOUSE: President Obama Signs Health Reform Into Law

By changing the angle of its wings and its body, the moth was able to create a delicate balance between the thrust pushing it forwards, the drag - or air resistance - pushing against it, and the lift keeping it in the air.

BBC: Footage reveals how insects use their bodies to hover