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With regard to the section of coset in algebraic structure, a series of well-mastered concepts including equivalent relationship and division are applied, and typical examples are cited to introduce the conception of equivalent relationship-coset relationship defined through subgroup.

对于其中代数结构部分的陪集一节，应用已经熟知的等价关系和划分的概念，通过引例导出由子群定义的等价关系―陪集关系，进而得到群的划分―陪集，再研究陪集的性质。

Diogenes'"Cosmopolis"and Crates'utopia of"Pera" are the typical examples.

第欧根尼的"世界国家"，克拉底的"乌托邦"是其典型代表。

As a result, it shows thatthe static or dynamic subsystem optimum alone is not equal to the system optimum. Three initial value problems met in the optimal design of flying vehicle are studied andconclusions are derived that: orthogonal test method can be adopted to decide the initial valueof static optimization problem, some mathematical techniques can be used to deal with thecostate variables of Maximum Principle and decide the initial value of the costate variable,the indirect method can be used to get the analytical solution under ideal case to guide thechoice of the initial control curve in the direct method. With some numerical examples oftrajectory optimization, it shows that all these methods are useful not only in accelerating theconvergence but also in converging to the global optimum.

针对飞行器优化设计中的三种初始值问题进行了研究，以远程弹道导弹弹道的工程优化为例说明，对于静态优化问题，采用正交试验法选取初始值，不仅可以大大加快收敛的速度，而且更有可能收敛到全局最优解；以气动力辅助变轨问题为例说明，用共态变量的一阶泰勒级数展开可以解决极大值原理中共态变量初值难于确定的问题；以二级弹道导弹的主动段弹道优化为例说明，利用间接法在理想情况下得到的解析解来指导直接法初始控制曲线的选择，将大大有利于提高直接法的收敛速度。

You don't hear too much about their early failure because parents prefer to cote more inspiring examples.

你们听不到太多有关伟人们早年失败的故事，因为父母更爱举一些鼓舞人心的例子。

In Chinese history, such examples can be described as unprecedented: never a man among the President of the elegance of his wife, the night was off to a count input prison for up to 12 years.

在中国历史上219，这样的例子，可说是前所未有的：从来没有一间是他妻子的优雅总统的人，晚上是有了一个计数输入监狱长达12年。

The word"weight" is called a countable noun in these examples.

在这些例子中，单词"weight"叫作可数名词。

This is the crux of Gettier counter examples, each example has a problem involving the justification.

这就是"葛梯尔反例"的关键所在，每个反例都涉及一个"证明"的问题。

This paper discusses the static model of the super lift, deduces the force calculation formulas for the counter weight ground contacting case and the hanging case and gives calculation examples.

文章讨论了超级起重的静力模型，按配重接地模式和配重悬空模式导出了力的计算公式，并给出了算例。

History, it is true, furnishes numerous examples of a revolutionary force seizing power and then falling almost immediately beneath the wheels of a counterrevolution.

无可否认，革命力量夺取政权后不久又被反革命的车轮所推翻的事，在历史上发生过多起。

Based on the dynamics fundamental equation, the rigid ships rolling coupled oscillation model was established, then the definite condition of the coupled oscillation equation under the regular transverse wave and first-order ordinary differential equations were presented. The ship vibration rule under the regular transverse wave was analyzed by examples, simultaneously the influence of damping coefficient on the vibration type was discussed.

基于动力学基本方程，首先建立了刚性船舶横摇的耦合振动方程，然后给出了在规则横浪激励下的耦合振动方程的定解条件和一阶常微分方程组，最后通过算例计算了在规则横浪作用下船舶的振动规律，同时研究了阻尼系数等参数对其振动规律的影响情况。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。