标枪的气动阻力、升力随迎角增加而增加。
The aerodynamic drag and lift of javelin increase with angle of attack.
适当延长地板，可提高气动阻力系数的测量精度。
By extending length of the test floor properly, the aerodynamic drag coefficient can be measured more precisely.
利用等离子体的特性减小飞行器的气动阻力是一种新概念的减阻思路。
Using characteristics of plasma to reduce aerodynamic drag of vehicles is a new concept of reducing drag.
计算得到的不同流线型列车的整体长细比大小排序与其气动阻力系数排序完全一致。
The order of total slenderness ratios of the five trains is as same as that of aerodynamic drag coefficients.
计算了颗粒与气体不同温差情况下高温颗粒的气动阻力，并根据计算数据点拟合了计算公式。
Then compute aerodynamic drag of high temperature particle at different temperature difference and fit the formula according to the computational data points.
为研究太阳帆板地面展开试验中气动阻力的影响，基于动网格技术提出了一种时变空气阻力计算方法。
To study the effect of aerodynamic drag in the solar array spreading on the ground, a calculation method of time-varying aerodynamic drag was put forward based on dynamic meshes in this paper.
揭示了气流流动特性和厢式货车气动阻力特性之间的关系；厢式货车基本结构参数变化时阻力特性的变化规律。
The relationship between airflow characteristics and aerodynamic drag and the variation of aerodynamic drag with basic structural parameters were obtained.
现代的飞机设计做得很好，但立足于燃料效率来看，飞机是否能设计得更符合空气动力学——降低阻力还是增加动力？
The modern airplane design works well, but from a fuel efficiency standpoint, could planes be designed more aerodynamically — to lower drag and increase lift?
的确鸟儿尾巴一样的飞机尾部改善了空气动力学性能，缓解了机体和机翼的阻力，同时还大大的增加了向上的力，缓释了由于飞机本身和货物重量而产生的向下的力。
But it was a birdlike tail that really amped up the aerodynamics, dampening the drag from the body and wings, as well as boosting the lift that lags under vehicle weight and cargo load.
除非你在空气动力学实验室工作，否则没有人知道汽车在空气的阻力下行驶时，75英里的时速比65英里要多消耗多少能量，事实是这个差距非常大。
Unless you work in an aerodynamic lab, you don't understand how much more energy it takes to push a car through the air at 75 MPH than at 65 MPH, but it's huge.
如果你开着窗，根据车辆空气动力学的外形，你的车受的阻力较少。
If you keep your Windows up your car will be subject to less drag, which improves the aerodynamic profile of the vehicle.
在空气动力学上，升力是重量，推力和阻力(空气阻力)的相关的函数。
In aerodynamic terms, lift is a function of weight, thrust and drag (air resistance).
由于地处高海拔地区，气压较低，因而作用在球上的阻力及升力所产生的空气动力效应也会发生相应反应，最终导致球在空中飞行速度比在低海拔地区快，飞行的路线也更直。
At altitude, the air pressure is lower, and so are aerodynamic effects such as drag and lift, ultimately causing balls to travel faster and straighter than they would at lower altitude.
这些优势有助于优化大翼外形并减少气动凸表，从而减小阻力并提高飞机的性能。
This also optimizes wing shape and reduces the potential need for bulging aerodynamic surfaces, which in turn reduces drag and increases airplane performance.
减低汽车行驶中的空气阻力、抑制其行驶时的气动噪声具有十分重要的意义。
It is very important to reduce the aerodynamic drag and noise for traveling vehicles.
为了减小空气阻力，列车车厢气动外形的研究变得愈加重要。
To decrease aerodynamic drag, it is important to improve aerodynamic contour of train.
赛车运行时所受到的空气动力阻力。
The aerodynamic resistance experienced as a car travels forwards.
为了保持飞行速度，产生一定的气动升力，鸟类用三种办法来克服空气阻力。
In order to keep the flying speed, produce certain aerodynamic lift, the birds overcome the air resistance with three kinds of methods.
运用空气动力学原理，对标枪的纵轴旋转与压强阻力、偏向力、上升力及稳定性的关系进行分析研究，以更好地指导运动训练的实践。
The paper elaborates on the relations between the revolve of Javelin and pressure resistance, deflection force, ascensus force as well as stability.
考虑了不同飞行攻角、不同燃料流率下气动参数，包括升力系数、阻力系数和俯仰力矩系数的变化规律。
The change rules of aerodynamic parameters including lift coefficient, drag coefficient and pitch moment coefficient have been analyzed when Angle of attack and fuel flow rate is changed.
文中分析了该装置的工作原理，气动力与提水阻力的关系；
The working principle of the plant and the relation between the aerodynamic force and the drag of water lifting are discussed.
在零攻角实验时不同模型的空气动力阻力是采用简化方法来计算的；
The aerodynamic drag of different models at zero angle of attack in the experiment is calculated using the simplified procedure.
减小列车空气阻力和降低列车交会压力波，既矛盾又统一，列车气动头部外形设计需要综合考虑各种因素。
The aerodynamic shape design of train head should consider all kinds of factors because the relation between reducing aerodynamic drag and air pressure pulse may be conflictive and uniform.
基于附着流状态下的旋翼非定常翼型气动模型，给出了计算该状态下的翼型非定常升力、阻力和俯仰力矩的数值计算方法。
A numerical method is given to calculate the unsteady lift, pitching moment and drag acting on an airfoil of rotors under attached-flow conditions in a compressible flow.
与无鼓包的舵相比较，带有鼓包的舵其气动特性，尤其是阻力有所变化。
Compared with the fin without bulges, the aerodynamic characteristics of the a fin with a bulge are changed, especially for the drag.
另外还计算了不同的冰形对机翼升、阻力的影响，结果表明瘤状冰对机翼气动特性的影响最大。
The results indicate that the glaze ice has the most adverse impact on airfoil aerodynamic performance.
另外还计算了不同的冰形对机翼升、阻力的影响，结果表明瘤状冰对机翼气动特性的影响最大。
Also the effect of different ice shapes on lift and drag coefficient were assessed. The results indicate that the glaze ice has the most adverse impact on airfoil aerodynamic performance.
能估算可压缩无粘流中，基本空气动力外形的升力和阻力。
Calculate the lift and drag over simple aerodynamic shapes in compressible, inviscid flows.
能估算可压缩无粘流中，基本空气动力外形的升力和阻力。
Calculate the lift and drag over simple aerodynamic shapes in compressible, inviscid flows.
应用推荐