翼的

5 Class E: ROTORCRAFT -An aerodyne that derives the whole or a substantial part of its lift from a rotary wing system.

E 级：旋翼机—一种重航空器产生的全部或相当大的一部分爬升力﹙ lift ﹚来自从旋翼系统﹙ rotary wing system ﹚。

The aerodynamic characteristics of one FFA W aerofoil were calculated and the result indicated that this kind of aerofoil was proper to be chosen in the wind energy heat utilization system.

利用雷诺平均Navier Stokes方程，采用标准k ε双方程湍流模型，对具有代表性的FFA W系列翼型的气动性能进行了模拟计算，结果表明该系列翼型适合于在风能热利用系统中应用。

Any of several flightless birds of the genus Apteryx native to New Zealand, having vestigial wings and a long, slender bill.

鹬鸵一种新西兰产的无翼属不能飞的鸟，翼退化咀长而细

Any of several flightless birds of the genus Apteryx native to New Zeal and ,having vestigial wings and a long,slender bill.

鹬鸵一种新西兰产的无翼属不能飞的鸟，翼退化咀长而细

In Chapter 2, a simplified analytical model is presented for the analysis of the BVI mechanism, adopting the Beddoes' prescribed wake model. By this model, the azimuthal location and miss-distance of the BVI and the radiation directivity of the BVI noise are calculated and discussed, and some conclusions are obtained.

在第二章，使用Beddoes预定尾迹模型，建立了一个用于旋翼桨-涡干扰特性机理分析的简化数学模型，分别对旋翼桨-涡干扰位置、桨-涡干扰距离和声辐射方向性等进行了计算和分析，得出了有意义的结果。

The constant term of the characteristic equation was criteria for static stability. Effects of major aerodynamic derivatives on static stability were discussed.

以状态方程作为描述地效翼船的数学模型，研究了地效翼船在飞行状态下的纵向操纵性与稳定性。

Fence vortex, which more to the middle of the cascade passage, reduce the loss near the middle of the cascade.

吸力面翼刀通过阻断气流的展向流动和产生反向翼刀涡来对栅内二次流动进行控制。

GBA SparrowHawk APV is the safest, least-expensive high-performance light rotorcraft now available for police applications.

松雀鹰型旋翼机是目前警用飞机中最为安全，价位低廉的高性能轻型旋翼飞行器。

Our 3-wing and 4-wing revolving door use Germany LENZE Motors, maintenance-free,AC-drives; Chain transmission;Japanese MITSUBISHI PLC controller; Switzerland Bircher safety sensors.

我厂生产的三翼四翼旋转门采用德国伦茨马达，免维护，交流变频；链条传动；日本三菱PLC控制器；瑞士比茨感应器。

Second, the flows over the NACA 0012 airfoil and a two-element airfoil were calculated to validate the developed gridless method.

其次，为验证无网格边界处理方法，计算了NACA0012翼型，多段翼型的流场，并与结构网格计算结果进行了比较。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。