There may also be a way to cut aircraft drag by making some surfaces less slippery.
把表面粗糙化也可能是减小飞机反作用力一个办法。
A modern sports glider, with long, slender wings, is the most aerodynamically efficient aircraft, with a lift-to-drag ratio of around 50:1.
现代运动用滑翔机的机翼长而细薄，拥有最佳的空气动力学效率，其升阻比达到50：1。
When the shape of a wing creates more lift from the air passing around it than it does drag (air resistance), an aircraft will fly.
当鱼鳍的形状通过流动的空气产生比其(空气)阻力更多的升力时，飞行物便能飞翔。
The design is intended to provide more lift with less drag compared with the cylindrical fuselage of a traditional aircraft, reducing fuel consumption while cruising.
设计是为了提供更多的电梯较少阻力相比圆柱形机身传统的飞机，降低燃料消耗，而游弋。
A light aircraft typically has a lift-to-drag ratio of around 10:1; for a hang-glider, the ratio is about 15:1.
一架轻型飞机通常拥有10：1的升阻比；而对于悬挂式滑翔机来说，这个比例大概是15：1。
The long narrow delta shape of supersonic aircraft is an example of aesthetic functionalism, an extreme form of streamlining that is essential to minimize drag.
超音速飞机的长窄三角翼型设计是美观实用原则的代表，极度的流线型设计对于将阻力降到最低是必要的。
That can be sustained against the induced drag of forward flight without significant loss in to vertical lift out puts to support the weight of the aircraft.
这可以持续反对前飞诱导阻力，在没有重大损失摆脱垂直放在支持飞机的重量。
When both are raised, overall lift fall and drag increases, so the aircraft descends.
当两边的扰流片都扬起时，升力就会下降，阻力增加，飞机下降。
The configuration also provides acoustic shielding and, at low speed, increases aircraft lift without a thrust or drag penalty.
该构造还提供声屏蔽，并且在低速下，增加飞机升力的同时没有推力或阻力损失。
It has been shown that the corrected drag at zero-lift and the trimmed drag due to lift are in good agreement with those verified by flight tests for aircraft performance.
结果表明，经修正的飞机零升阻力和平衡升致阻力与资料值(经飞机性能试飞验证的结果)有较好的一致性。
High-speed aircraft usually employ thin, low-drag, low-lift airfoils; slow aircraft that carry heavy loads use thicker airfoils with high drag and high lift.
高速飞机通常采用低阻力、低升力的流线型薄翼型，载重量大的低速飞机使用高阻力、高升力的厚翼型。
By doing integral computation on the wake surface that is down from the aircraft and vertical to the velocity of far field, it can get the lift, induced drag, wave drag and the total drag.
在飞行器所在流场的下游一垂直于来流速度的截面上进行积分计算，得到升力、诱导阻力、激波阻力和总阻力。
The Advanced Multiband Communication antenna System (AMCAS), developed for the U. S. air Force, is an extremely low-profile antenna that significantly reduces drag on an aircraft.
美国空军研发的先进多波段通信天线系统(amcas)是一种极低姿态天线，大大降低了飞机拖曳。
In order to enhance the stealthy ability and reduce the drag of an aircraft, the combination of the stealthy fuselage of plane abdomen with a submerged inlet is a good approach.
为了提高飞行器的隐身性能和降低其迎风阻力，采用具有平面腹部的低雷达截面外形机身与埋入式进气道的组合是一种良好的解决方案。
In order to enhance the stealthy ability and reduce the drag of an aircraft, the combination of the stealthy fuselage of plane abdomen with a submerged inlet is a good approach.
为了提高飞行器的隐身性能和降低其迎风阻力，采用具有平面腹部的低雷达截面外形机身与埋入式进气道的组合是一种良好的解决方案。
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