查询词典 aerodynamics

Unfortunately, though, because of the aerodynamics and gyroscopic effects of the blades, all these controls are related.

不幸的是，由于桨叶的空气动力学效应和回转效应，所有这些控制都是相关联的。

The trained neural netw ork model can be directly applied to aerodynamics research and real-time simu lation of helicopter.

由该方法建立起来的干扰神经网络模型可直接用于直升机空气动力特性的研究及实时仿真。

Ospina, in a telephone interview from West Caribbean's headquarters in Medellin, Colombia, said the tail cone's function is to improve fuel efficiency and aerodynamics and was in no way related to any problems that caused the latest crash.

奥斯比纳在哥伦比亚的麦德林市的西加勒比海总部接受电话采访时说，客机尾锥有空气动力学的功能，用于改善燃料的效率，与导致这起飞机坠毁的任何问题无关。

In this study, based on the Rnl, extinction coefficient k, transition coefficient of canopy layer stomatic resistance K', aerodynamics resistance ra and rc calculated with the data of Rn, LAI, rsi, the daily transpiration variation of Picea purpurea, Larix principisrupprechtii, Hippophae rhamnoides ,Betula platyphylla and Populus cathayana were studied in Datong County, Qinghai Province. Comparing with the practical transpiration variation measured by Li1600 Steady Porometer, the relative error of this model was less than ±15%, and the results were stabilized and tested by precision analysis.

本研究通过对Rn、LAI、rsi的实地观测，确定了林冠截流净辐射、消光系数、冠层阻力转换系数、空气动力学阻力和冠层整体气孔阻力，对青海大通地区紫果云杉、华北落叶松、沙棘、白桦和青杨的日蒸腾过程进行了模拟，与用快速称重法订正的Li1600稳态气孔仪实测蒸腾结果对比，模拟的相对误差在±15%以内；模型敏感性分析发现，温度、LAI以及rsi是决定模拟结果的主要参数，模型对各参数变化反应不敏感。

The German designer and aerodynamics expert teamed up with renowned German piano maker, Schimmel Pianos to create the K 208 Pegasus - an oval piano.

这位德国设计师兼空气力学专家和德国名琴生产商，Schimmel钢琴联合打造了飞马K208 -一架流线型钢琴。

On the basis of summarizing the application of the Penman-Monteith model in forest underlying surface, the evaluating method and significance of many parameters were expounded. The calculating methods of the key parameters were discussed including net radiation, aerodynamics resistance and canopy layer stomatic resistance, some problems were analyzed and some suggestions were given for practical application of this model in forest evaportranspiration research.

中文摘要： Penman—Monteith公式是在蒸散研究中应用最多，也是变化形式最多的方法，该文在对目前Penman—Monteith模型在森林下垫面中应用总结的基础上，阐述了其中众多参数的意义和常用的确定方法，着重探讨了影响该模型精确性的关键因子净辐射、空气动力学阻力和冠层阻力的计算方法，并分析了Penman—Monteith模型在实际应用中存在的一些问题，提出了该模型在今后森林蒸散研究中发展的思路。

Using aerodynamics theory of turbomachine with encircling control in blades, this paper expounded basic principle and design method for double array cascade GKJ fans which were made for the first time.

本文应用叶片机械绕流控制的气动理论，阐述了双列叶栅的基本工作原理与设计方法，介绍了首次研制的GKJ双列叶栅风机的综合性能试验曲线。

Moveable aerodynamics Budget controlled teams will be allowed to have their front wing adjusted by 1 0°, a surplus of 4° over the teams that choose to go with the conventional r ule set.

可动空气动力套件预算帽车队的前翼将被允许10度的调整，比其它车队多4度的选择，而且次数不作限制--没有没圈两次的限制。

The flowfield and performance of a centrifugal compressor was predicted and analysed, which was composed of a Krain's impeller and two types of vaneless diffuser specially: one was constant area vaneless diffuser and the other was the straight-wall. The results show that the efficiency of the straight-wall vaneless diffuser is obviously lower than that of the constant area, and a separate flow occurs nearby the exit of the centrifugal impeller with the straight-wall diffuser. However, the type of vaneless diffuser has little influence on the aerodynamics performance of the centrifugal impeller. Finally, it is suggested that the constant-area vaneless diffuser should be selected as the downstream extended area of the centrifugal impeller during the prediction for the centrifugal impeller.

对Krain叶轮后带等面积与直壁两种形式的无叶扩压器离心压缩机内部流场进行了计算与分析，结果表明：直壁型无叶扩压器离心压缩机的效率低于等面积无叶扩压器离心压缩机的效率；直壁型无叶扩压器使得叶轮出口的流动出现分离；扩压器的形式对离心叶轮的整体气动性能影响并不大；在进行离心叶轮数值研究时，叶轮后的延伸区最好采用等面积无叶扩压器，以尽量减小无叶扩压器所引起的计算误差。

All of these features clearly bear testimony to excellent aerodynamics as well as a low centre of gravity helping to promote superior agility on the road.

所有这些特性显然见证出色的空气动力学以及帮助，以推动在道路优越的灵活性低重心。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。