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1The axial evolution law on the structure and the aerodynamic characteristics of the asymmetric flows around slender bodies of revolution at incidences is summarized:whether the flow asymmetry is powerless or powerful,the flow always appears in the structure that lee-side vortices rise,and shed vortices form,and new lee-side vortices come into being alternately on opposite sides of a slender body of revolution axially from nose apex downstream to afterbody,and always induces the sectional side force of waving quasi-sinusoidally downstream axially.

1总结出细长旋成体有攻角非对称绕流流场结构和气动力特性的轴向演化规律:无论非对称性强弱,沿轴向从头部尖顶往后体,非对称绕流总是呈现为左、右两侧背涡交替从物面向上飘起、形成脱落涡、再衍生出新生背涡的流场结构,并诱导出沿轴向呈类似正弦曲线形式振荡分布的截面侧向力。

The last three joints of PБ-211 robot are controlled by symmetric valve controlling asymmetric cylinder system.

由于对称阀控制非对称缸两个运动方向上系统的开环增益及某些参数的不同,使得两个方向上的动态特性不对称,主要表现在超调量、调节时间、振荡次数和稳态误差等几个方面,这种本质上的非线性和非对称性给系统控制带来困难。

In order to improve the validity of identifi cation of digital image origin and predetermine accurately threshold of identification,a new probability density function of generalized chi square distribution is constructed within0,1 for asymmetrical distribution of noise correlation.

为了提高鉴别数字图像来源的正确性,正确设置判别阈值,针对噪声相关性的非对称分布,在0,1区间构造了一个广义chi平方分布的新函数,并提出了一种利用广义chi平方分布来描述噪声相关性的非对称分布和利用广义高斯分布来描述噪声相关性的对称分布的新方法。

The research shows that asymmetry information can cause sluggish behaviour for the same type of employees, the exogenous layoff probability can restrain labour positivity and threaten the efficient labour of the employees, and reduce the agent cost. While endogenetic layoff probability cannot impact on the function of the assembled mechanisms consisting of promotion and fixed income under asymmetry information, which can avoid the moral risk of employees to achieve the same degree of their labour under symmetry information.

研究表明:非对称信息会诱导同类员工偷懒行为,外生裁员概率抑制员工的劳动积极性,对员工的有效劳动构成一种威胁,但裁员概率降低了代理成本;外生裁员机制并不影响信息非对称下的晋升激励和固定收入组合机制持有的避免员工道德风险的功能,实现员工对称信息下的努力程度;以绩效评估为特征的内生裁员机制能够促使异类员工更加努力工作,提高产量,相应地也增加了工资支出;高能员工比低能员工更努力,提高员工裁员绩效标准和高能员工比例,有利于降低代理成本。

The reliability theory is combined with the fuzzy optimization technique, the theories and methods on the symmetrical fuzzy reliability optimization design, the asymmetric fuzzy reliability optimization design and the multi-objective fuzzy reliability optimization design are presented respectively, and then the correspondence direct model solutions, the iterative solutions, the corrected algorithm for iteration method, the level cuts solutions and the searching solutions with limited boundary for the asymmetric fuzzy reliability design are presented respectively.

将可靠性理论与模糊优化技术有机地结合起来,提出了结构对称模糊可靠性优化设计、非对称模糊可靠性优化设计和多目标模糊可靠性优化设计理论与方法,并分别给出了模型的直接解法、迭代解法、迭代求解的改进算法和非对称模糊可靠性优化设计模型的水平截集法和限界搜索法。

First, theoretical analysis methods were used for the static analysis of the suspension bridge. The formulas for endogen force of the asymmetry suspension bridge through elastic theory were deduced and they were contrasted with those of the normal suspension bridge. The basic differential equation of deflection theory was deduced and the method of getting the roots of the equation was offered, and some simplified methods for deflection theory were presented.

推导了非对称式悬索桥弹性理论的内力计算公式,并对比了其与对称式悬索桥弹性理论的内力计算公式的异同;推导了非对称式悬索桥挠度理论的基本微分方程,并且给出了部分均布荷载作用下基本微分方程的试算方法;提出了挠度理论的几种简化计算方法。

The rear rim is asymmetrical on the freewheel side to improve torque transmission, while the front wheel is asymmetrical on the disc side to improve wheel rigidity during the braking stage, thereby increasing the bike's steerability.

对后轮而言,非对称质量边在小飞轮盘一侧,这使得扭矩传输更加平顺。对前轮而言,非对称质量边在刹车碟一侧,这样在刹车时提高了刚度,同时也提高了刹车时的可控性。

Now there are four major types of FGCs: separated structure based on Mach Zehnder interferometer, dissymmetric structure based on 100% coupler, dissymmetric structure based on 0 coupler and symmetric structure based on 100% coupler.

光纤光栅耦合器主要有4种结构:基于MZ干涉仪的分离型、基于100%耦合器的非对称型、基于0耦合器的非对称型和基于100%耦合器的对称型。

Two kinds of self-made PCF were used, and an effective fusion scheme was adopted to perform the splicing experiments. By combining experiments and numerical calculations, reasonable fusion parameters were set up and the mode fields at each fiber′s end face were rescaled.

基于一种高效的低损耗熔接方案,将理论计算与实验测量相结合,选取合理的熔接参量对光纤端面模场进行重塑,使两光纤端面模场匹配程度大大提高,从而实现了对称结构与非对称结构PCF之间、以及两种非对称结构PCF之间的低损耗、高强度的熔接。

On the basis of the system of signal control theory at cross roundabout, the optimization of control method based on the dissymmetry of roundabout at coordinated control system is put forward. This new method takes the equilibrium of saturation-degree as a target and optimizes the phase model and the green ratio model.

在已建立的十字环形交叉口信号控制理论的基础上,通过分析十字环形交叉口的车辆运行特征,提出基于非对称性的优化控制理论,同时建立非对称控制相位确定方法、非对称绿灯时间模型以及优化绿灯时间的计算方法。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。