查询词典 existence

Under some reasonable assumptions of the'Distribution Matrix', the Riemann Problem with piecewise constant initial data is proved to have a unique Riemann Solver; furthermore, using'Wave Front Tracking Method'and properties of the'Generalized Characteristics', we prove the existence of weak entropy solution to the Riemann Problem with arbitrary initial data of bounded Total Variation.

在"分布矩阵"满足合理的假设前提下，证明了具有分片常值初始条件的黎曼问题的黎曼解算子的存在唯一性；并进一步运用"波前追踪法"和"广义特征"等得到了具有任意有界全变差初值条件的广义黎曼问题的弱熵解的存在性。

In Chapter 2, we obtain the boundedness of solutions and the existence of invariant tori for an symmetric conservative system.

在第二章中，我们研究了一类非对称的保守系统解的有界性和不变环面的存在性。

Using qualitative analysis methods, the paper studies the boundedness of solutions and the existence of limit cycles.

利用定性分析的方法，讨论了模型在收获率条件下平衡点的稳定性，解的有界性，极限环的存在性问题。

In Chapter 3, we study the boundedness of solutions and the existence of invariant tori for two kinds of isochronous systems.

在第三章中，我们研究了两类等时系统解的有界性和不变环面的存在性。

In this project, we firstly dealt with the existence and multiplicity of periodic solutions and boundedness of solutions of Duffing equations.

一方面，本项目研究了Duffing方程周期解的存在性、多解性及解的有界性。

Using general qualitative analysis methods, we study the boundedness of solutions, the properties of equilibrium and the existence of limit cycles.

利用常用的定性分析方法，讨论了模型在收获率条件下的解的有界性、平衡点的性态及极限环的存在性问题。

This project mainly dealt with the existence and multiplicity of periodic solutions and the boundedness of solutions of nonlinear oscillations.

本项目主要研究非线性振动中周期解的存在性、多解性及解的有界性、无界性。

If this thesis is correct, then one can quite clearly see why the bourgeois class struggle dominates the proletarian class struggle from the outset and why the proletarian class struggle has needed so long to take shape and to find its own forms of existence, why the class struggle is fundamentally unequal, why it is not conducted using the same practices on the part of the bourgeoisie and the proletariat and why the bourgeoise has engendered forms in the ideological state apparatuses, whose task it is to preempt the revolutionary action of the working class and to subordinate this class.

如果这个论题是正确的，那么人们可以非常清晰地看到为什么资产阶级的阶级斗争从一开始就支配着无产阶级的阶级斗争，无产阶级的阶级斗争为什么需要那么长的时间才能成形并找到自身的存在方式，为什么阶级斗争从根本上是不平衡的，为什么对于资产阶级和无产阶级来说，不能运用相同的实践去进行阶级斗争，为什么资产阶级（原文是bourgeoise，意为资产阶级妇女，疑为bourgeoisie之误）也在意识形态国家机器当中构造了诸种斗争形式，后者的任务就是预先取代工人阶级的革命行动并让这一阶级服从于它。

At this moment, a lonely existence just is a bourn.

在这个时候，孤独的存在就好比是心灵的小溪。

According to introducing, the meeting after these baleful trojan programs affect tube-shaped part of computer science department undertakes to the system of a lot of destroy, be like: Without the license of computer user bowdlerism or it is file of the mass data in replacing interconnected system of computer science department, cause the important data in maintaining existence system to the file is lost or be distorted.

据介绍，这些恶意木马程序感染计算机系统后会对系统进行很多的破坏，如：未经计算机用户的许可而任意删除或是替换计算机系统中大量数据文件，造成保存在系统中重要的数据文件丢失或被篡改。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷