The Aero-Box Vari Frame reduces wind drag compared with a standard air-flow pattern, maximizing the power of the swing and the transfer of energy to the ball.
拍框上部可以减少挥拍空气阻力，拍框下部可以增加控球能力，让球拍攻防兼备。
The design of the bicycle reduces the effects of wind resistance and drag.
这种自行车的设计减少了风阻及曳力的影响。
The low-pressure area reduces wind resistance and hence the amount of drag, which means less energy is needed to maintain the same speed as the leader.
在低压力区，空气阻力减少，向后拉的力量减小，因此只需要消耗较少的能量就可维持与在前面的竞争对手相同的速度。
Vibrating in the wind, the bristles create some drag. But they also reduce the wing's slipstream, an area of low-pressure turbulence that pulls back on the wing, and hence reduce drag.
风中振动时，刷毛会产生反作用力，但同时它也可以减少机翼滑流，产生一个低气压乱流，机翼上形成回力，因而减小阻力。
If it's air and you move through air, - you feel the wind through your hair — that's a drag force.
如果你穿过空气，会感觉风吹过你的头发-，这便是阻力。
Then they popped the fish into a wind tunnel to calculate their lift-to-drag ratios, sometimes called the glide ratio.
之后，将其放入风洞以计算升阻比，有时也被称为滑翔比。
The results indicate that the head-on wind area of the TAB is the main factor in determining the drag size.
结果表明，挡流板的迎风面积是决定阻力大小的主要因素。
The deviations of corrected drag coefficients of the two wind tunnel tests are within 0.006.
试验分析数据相比，两者之间修正后的阻力系数误差在0.006以内。
Then, the base bleed method is introduced on a general supersonic missile to decrease the base drag of the inlet cowl for the first time and is validated by wind tunnel test.
本文首次将底部排气法应用于导弹上，结合一种具有常规气动布局的超声速导弹进行了底部排气方案设计，采用一种“底窝器”来提高进气道整流罩的底部压强，并进行了风洞实验验证。
In the method particle trajectory model of certain aviation bomb is chosen, drag law by the numerical simulation based on the virtual wind-tunnel is adopted.
该方法选用航空炸弹质点弹道模型，采用虚拟风洞数值模拟得到的炸弹阻力定律，结合实弹靶试数据，对弹道系数进行了符合计算。
It is very complex to calculate the aerodynamic drag of high-speed train running in railway tunnel with multi -shafts. And the difficulty is to calculate the velocity of piston wind.
在高速列车空气阻力计算中，多竖井隧道的列车空气阻力计算比较复杂，其难点在于多竖井的活塞风计算。
One weak wind conditions, surface pollution mainly related to Brownian motion and turbulent diffusion, under strong wind mainly associated with the air drag force.
其中弱风环境下，表面积污主要与布朗运动和湍流扩散相关，强风环境下主要与气流曳力相关。
To restrain the wind-induced vibration of its feed cabin and the pseudo-drag of its cable, we propose a new structural scheme for adding a fluid vessel to the moving platform of the robot.
为了抑制悬索虚牵和馈源舱的风致振动，提出了在此机器人的动平台上增加盛液容器的结构新方案。
The drag coefficient derived from filed measurement was 15 percent less than that of wind tunnel test. On the contrary Reynolds number has a minimal effect on lift force and moment coefficient.
结果表明：雷诺数对阻力系数影响较大，现场实测值比风洞试验所得值小约15％，对升力系数及力矩系数影响较小。
A wind tunnel test for a model of the automobile body shows that beneficial effects on reducing drag and suppressing aerodynamic noise by using internal acoustic excitation.
汽车车身模型风洞实验表明，用内部声激励可获得有效的减阻效果，而且还能起到抑制气动噪声的效果。
Then kinematics and dynamics of lift-drag-type vertical axis wind turbine of living leaves is analyzed and mathematical model is established.
然后对升阻型垂直轴活叶风力机进行运动学分析和动力学分析，建立了数学模型。
The utility model is also provided with a wind-proof rod which can drag the umbrella cover in upwind ride to prevent the umbrella cover from being blown up and turned over.
该伞还设有防风杆，迎风骑车时，它可牵拉住伞面，以免伞面被风吹起上翻。
The authors also tested the flat plates with and without the Biblets drag Reduction Film in wind tunnel and compared their fluid drags.
作者在风洞中做了贴及不贴微肋薄膜平板试验对比。
The authors also tested the flat plates with and without the Biblets drag Reduction Film in wind tunnel and compared their fluid drags.
作者在风洞中做了贴及不贴微肋薄膜平板试验对比。
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