结合律

As Ion was the eponymous ancestors of the lonian four tribes and this fact is very convenient for justification of Athens imperial expansion in the fifth century, Euripides' transformation of Ion as a symbol of the combination of autochthony and lonian expansion, demokratia and imperialism, can be said in a certain sense to have done an important political justification of Athenian policy in the fifth century.

Ion为爱奥尼亚四部落的名祖祖先。这个事实非常容易来验证、肯定雅典在五世纪时期帝国主义的扩张行为。优律波底斯这种将Ion转化为结合雅典土生土长以及爱奥尼亚扩张，雅典民主及雅典帝国主义行为的象徵，可以说在某种意义上为雅典在五世纪的政策作了一个重要的政治性背书。

A new efficient method of numerical iteration solution to the boundary value problem was put forward.

结合航天飞机和飞马火箭的制导律，进行了制导技术的开发，提出了一种新的基于该控制律的火箭真空段运动的多变量边值问题的有效数值迭代解法。

On the stability of discrete- time sliding mode control systems .

利用离散趋近律和灰色估计器结合起来设计不确定系统的变结构控制的方法是可行和有效的，保持了闭环系统的稳定性。

Mathematics A set of elements having two operations, designated addition and multiplication, satisfying the conditions that multiplication is distributive over addition and that both operations are associative and commutative for all elements of the set, with the exception of the additive identity element, which is not commutative in respect to multiplication.

域，体：进行加法和乘法两种运算的一组数，满足如下条件，即乘法分配律同样适用于加法分配律，各数在做加法和乘法两种运算中可相互结合并交换，但在乘法中不可交换的加性恒等幺元除外

The historical materials prove that instructing itself with the legist principle of 'good emperor rules officials rather than civilians',the beginning of Han Dynasty controls the bureaucracy strictly, punishing their crimes with rigorous tortures.

根据对《二年律令》和《奏袱书》的研究，结合考察相关的历史文献，我们可以看出汉律的两个特点：一是汉律治吏以重典，目的在抑治腐败；二是汉律治民以重典，目的在维护封建伦理关系。

Based on the observation and analysis of social communication network, it is noticed that in social communication network, the transfer of message is optimized.

基于P2P网络的幂律分布和小世界特性，通过对复杂网络幂律特性产生机制的分析并借鉴人际传播中谣言传播机制，提出了一种结合择优连接机制和谣言传播中兴趣衰减机制的信息资源搜索方法。

The methods of theory analyses and digital simulation have been used in this thesis and several schemes of strapdown guidance law based on analyzing the performance of several classical guidance laws have also been present according to the characteristics of strapdown Anti-Radiation homing seeker. The stapdown guidance systems were built for a certain Anti-Radiation missile, adopting acceleration autopilot and the attitude autopilot, and the paper has focus on analyzing the performance of low frequency strapdown Anti-Radiation homing seeker. The Approaches of lead correction and dead-zone relay control were given to improve the guidance precision, and also the increasable observability law was attempt and validate.

本文采用理论分析和仿真实验相结合的方法，在对经典制导律进行理论分析和验证的基础上，针对捷联反辐射导引头的特点，提出了捷联制导律多种设计方案，并以某型反辐射导弹为应用背景，分别采用姿态角反馈自动驾驶仪和过载反馈自动驾驶仪构造了捷联制导系统，重点基于反辐射导引头的低频端特性，开展了捷联制导律的导引性能对比分析工作，提出了应用超前校正和带死区继电控制提高制导精度的方法，并对提高可观测性的捷联制导算法的实现思路进行了尝试和验证。

Then he gave a high appraise to logic of Moism. What he had done established a new way for the research of logical history in Chinese modern times, and pushed the research of Chinese logical history toward a new developing stage.

梁启超在逻辑——方法论方面取得的主要成就：①对比分析了归纳法与演绎法，特别是对归纳法的分析比较详尽，也基本正确；②主要将比较法作为归纳法的一个组成部分来进行分析，论述了比较法的认识作用，讨论了比较法在历史研究中的运用；③比较分析了分析法与综合法的思维过程，并结合治史和读史具体化为历史研究方法；④阐述了因果律的基本要求，与近代莱布尼茨的充足理由原则和普通逻辑的充足理由律思想相似；⑤探讨了名的分类方法，分析了前人的错误分类，提出明确划分根据的重要性。

The mid-course is combined with variable structure proportional navigation in the homing phase.

该中段制导律与末段变结构比例导引律相结合完成整个制导过程。

Firstly, based on the sliding mode control and backstepping technique, a new attitude tracking controller is derived to control the attitude motion of spacecraft, the stability of the system is analyzed via Lyapunov method and the reaction wheel dynamics is also considered from the real applications point of view. The whole design process is divided into two steps: the first step is to use sliding control technique to design suppositional adaptive variable structure controller; and the second step is to design attitude tracking controller based on SMC and backstepping technique. Numerical simulations are performed to show that both tracking maneuver and vibration suppression can be accomplished effectively.

首先，采用自适应后步法结合主动振动控制技术设计了姿态跟踪鲁棒控制器，基于Lyapunov方法分析了系统的渐近稳定性；在此基础上，显性地考虑了执行机构动态特性问题，将整个设计过程分为两个步骤：第一步采用滑模控制技术设计了变结构虚拟控制器，给出自适应控制律的设计方法；第二步，将后步法与滑模控制技术相结合，设计了姿态跟踪鲁棒控制器，给出飞轮电压的输入算法及稳定性分析；最后，将提出的控制方法应用于挠性航天器的姿态跟踪控制，通过数值仿真对所提方法的可行性与有效性进行分析和验证。

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。