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In this paper an attempt is made to derive a practical formula for the induced velocity distribution in the lifting rotor disk plane on the basis of the generalized vortex theory.

本文试图根据涡流理论导出的精确公式，通过简化，获得适于工程计算的近似公式。

Liquid-fuelled rocket engines can be classified as either open- or closed-cycle, according to how they derive the gases that power the turbine-driven pumps used to force the fuel and oxidant into the combustion chamber.

液体燃料火箭引擎分为开或闭循环，是跟据它们如何获得涡喷驱动泵的气体迫使燃料和氧气进入燃烧室。

The method to configure RED parameters based on network properties is also presented. Simulations show that the modified Random Early Detection algorithm really performs better than the original Random Early Detection algorithm and can work for a much wider range of traffic. Finally, whether the assured service mechanisms i. e. an edge router tags every arriving packet of a TCP flow based service profile and core router drops packets differently at congestion using active queue management scheme is possible to provide a throughput consistent with target rate, is investigated under different network scenarios. Different factors including target rate tagged algorithm, RIO algorithm and TCP congestion control mechanism how to affect the throughput of an assured service TCP flow are examined. Based on a fluid model. we then derive a model of an assured service TCP flow, which is the function of round trip delay, packet loss rate and token bucket parameters. Based on this model, we observe that in some cases it is possible to regulate the token bucket parameters to gain a consistent throughput with the target rate, while in other cases there exist ranges of values of the achieved rate for which the token parameters have no influence. With the latter, some modified TCP congestion control mechanisms to assure TCP throughput are proposed.

最后，在区别服务网络结构内，研究了当前提出的一种边缘路由器根据服务合同标记、分类数据包，结合内部路由器采用主动队列缓冲管理机制区别处理数据包的确信服务机制是否可在不同网络情况下使TCP连接获得同目标速率相一致的、公平的吞吐量问题；指出影响TCP连接获得同目标速率相一致吞吐量的主要因素是目标速率大小、标记算法参数和TCP连接的拥塞控制算法；对此，基于流模型假设，首次推导出一个以端到端时延、数据包丢失率、漏桶参数为变量的确信服务TCP连接吞吐量模型；利用这个模型进行分析，得到主要结论是在一些情况下可通过设置合适的漏桶参数得到同目标速率更一致的吞吐量，而在另一些网络情况下不管如何设置漏桶参数都不能使TCP连接获得同目标速率一致的吞叶量；对于后一些情况，还初步讨论了改进TCP拥塞控制算法来改善TCP连接性能的方法。

Adam, now ope thine eyes, and first behold Th' effects which thy original crime hath wrought In some to spring from thee, who never touch'd [ 425 ] Th' excepted Tree, nor with the Snake conspir'd, Nor sinn'd thy sin, yet from that sin derive Corruption to bring forth more violent deeds.

现在睁开眼睛吧，亚当，首先看看由你而生的人们，由于你的原罪所造成的后果吧。他们并没有触摸禁树、和蛇同谋，犯过你所犯的罪行，却由于你的罪而一起坠落，作出残暴的行为。

That is, black-box testing enables the software engineer to derive sets of input conditions that will fully exercise all functional requirements for a program.

也就是说，黑盒测试使软件工程师得出的输入条件下集，将充分行使程序的所有功能要求。

First, an energy non-local model is presented to derive the constitutive equation of a new strain gradient theory.

首先，提出了能量非局部模型，并由此模型，得出新应变梯度理论的本构关系；其次，由变分原理，得出相应的有限元公式；再次，给出了微压痕硬度的有限元分析方法；最后，将该理论预测结果与经典理论预测结果以及实验结果进行了对比。

Then after a semi-rigid joint behavior can be modeled as a finite stiffness rotation spring, base on rotation and displacement equation derive the element stiffness matrixes with semi-rigid connections where the effects of jointed flexibility and shear forces in the connection deformations have been considered in and fixed-end forces are modified. Finally, a program for calculating system reliability of semi-ridge steel frames with Monte carlo method and finite element analysis has compiled for calculating and analyzing.

接着本文在介绍和分析半刚性连接弯矩和转角关系模型的基础上，用带有转动刚度的弹簧表征半刚性连接，推导出半刚性连接的刚度矩阵，对固端力进行修正，同时考虑了剪切变形的影响，编制了半刚接钢结构平面框架的有限元程序BHPFL，并在其基础上编制了基于蒙特卡洛法的Monte Carlo-BHPFL 有限元相结合的方法，进行体系可靠度的分析。

Usingthe adapter it is possible to derive sound and videoto the screen.

使用适配器（ DVI接口的HDMI ），这是有可能得出声音和视频画面。

While a single-file approach is recommended in most cases, sometimes you may derive some benefit from having two scripts -- one for the functionality that's needed as soon as the page loads, and another for the functionality that can wait for the page to load first.

虽然单一文件的办法是建议在大多数情况下，有时候你可能得到一些从两个鼻孔中获益脚本-一个是功能，需要尽快的页面加载，而另一个的功能，可以等待网页加载首先。

Contact found in 80 works will impose upon space and the norm of thinking seems to exist faults and barriers, ahead of fashion conscious consumers continue to derive more imaginative ideas to make their work a kind of weightlessness a sense of unconscious, self-desire expansion and to meet the Gengrang has become such a vague sense of, when hidden, at times, a lot of 80, after describing himself as an artist is not weight of objects, flying freely in the air, floating, this subjective state of consciousness driven by the description of means that the objective mental states, disorders and emptiness, extreme inflation and a good self-concept of a serious departure from the idealism and sense of reality, greatly outstrips reality, a feeling based on fantasy or fantasy thinking.

在我们接触的作品中会无形中发现80后的思维空间与常态似乎存在着断层和隔阂，超前时尚的消费意识不断派生出更有想象力的观念使他们的作品有种无意识的失重感，自我欲望的膨胀和满足更让这样的意识变得虚无飘渺、时隐时现，很多80后艺术家将自己描述成没有重量的物体，在空中自由自在的飞行、飘浮，这种主观意识状态驱使下的描述，意味着客观精神状态的失常和空虚，极度膨胀和自我良好的唯心意识观严重背离了现实，凌驾于现实之上的感觉建立在空想或幻想的思维中。

But this model is now in danger of outliving its usefulness.

但这种发展模式正面临丧失效力的风险。

To be brighter in the images and are now visually distinguishable.

to是明亮在图象并且现在是视觉上可区分的。