查询词典 aerodynamic

F-10B in the structure is basically designed to develop into a carrier-based fighters with the basic conditions, structure, aerodynamic and performance is also better balances the needs of carrier aircraft, but the single fighter to improve the structure of growth for the carrier aircraft re-issue of it is difficult to eliminate, J -10 with the AL-31FN engines on the J--10 There is just another shortcoming of lack of thrust.

歼-10B在结构设计上基本上具备了发展成舰载战斗机的基础条件，结构、气动和性能方面也比较好的均衡了舰载机的需要，但单发战斗机改进为舰载机的结构增重问题的影响却很难消除，歼-10采用的AL-31FN发动机对歼-10来说恰恰又存在推力不足的缺陷。

It has a unique aerodynamic design following the raked shape of the rear end.

它有一个独特的空气动力学设计的尾部。

The large rear light clusters also extend around the tail, while an aerodynamic rear spoiler rounds off the design.

大型尾灯组也向周围的尾巴，而关闭的空气动力学设计，后扰流板弹。

This tighter rear-end packaging increases the overall aerodynamic efficiency of the car.

这个尾部紧缩的修改增加了整部车的空气动力学的功效。

The only differences between the production model and the new race car are essential safety modifications, reduced weight and re-tuned suspension with no additional aerodynamic enhancements.

唯一的差异生产模式和新的赛车是必不可少的安全修改，减少体重和重新调整暂停不需要额外的空气动力学改进。

This text proceed with the theory of the vibration, utilize typical elastic hinge law analyze structure dynamics characteristic when the blade is quivered to instability, and then use relevant knowledge of blade vibration to simplify the model and the aerodynamic force of the vibration. Through the simplification, we can get the equation of the blade, which is dispersed to its instability. Then VISUAL BASIC procedure is utilized to work out thecharacteristic value of vibration and the vibration frequency. At last comparing the result which is calculated by the above-mentioned theory formulae with the result which is calculated by internationally agreed procedure ANSYS to verify the accuracy of the formula of reduction.

本文从振动理论入手，利用最为典型的弹性铰链法分析叶片发生颤振失稳时的结构动力学特性，然后对振动模型及振动时所受的气动力进行简化，利用简化方程得到叶片发生发散失稳时的振动方程，利用编制的VISUAL BASIC程序解出振动的特征值并得到振动频率，最后分别通过上述的理论公式和国际通用的有限元程序ANSYS对风力机叶片模型进行发散失稳时的频率计算，验证简化公式的准确性。

In this thesis, the estimation and identification of the aerodynamic parameters of a reentry cabin are widely studied.

本文结合我国载人航天飞行的实践，开展了飞船返回舱再入段非线性气动参数辨识问题的研究。

Its shape is a compromise between maximizing living space while allowing for some aerodynamic control upon reentry.

它的形状是一个折衷的生活空间，同时最大限度地让一些气动控制后折返。

The model was designed with 1: 4 scale, strips width of protection tillage and tradition farming are uniform, to analyze the construction characteristics of the wind velocity flows, the wind velocity lowering rate compared with the wind velocity of farmland and aerodynamic roughness along lengthways of strips under the different experiment wind velocity, diverse width of strip, dissimilar residual stubble density and residual stubble height term.

模型比例尺取1：4，保护性耕作带带宽和裸露带带宽相等，分析不同实验风速、不同带宽、不同作物残茬密度及不同作物残茬高度情况下，风速流场特征、沿带纵向对应裸地风速降低率状况和空气动力学粗糙度。

The paper introduces aerodynamic configuration optimization design of lower Reynold number aeroplane using genetic algorithm,and makes prototypes to test feasibility and correctness of design.

试验结果表明该优化设计方法是十分有效的，可以用来对具有正常布局形式的飞机进行气动外形的优化设计。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。