查询词典 necessary condition

At first,as weintroduce the concept of gauge function for stochastic to discuss the local time ofadditive Lévy process,so we get a necessary and sufficient condition for theexistence of the local time for a class of additive Levy processes.

本文主要在以下几个方面有所创新：第一，由于引入了规范函数来讨论可加Lévy过程的局部时，因而取得了比其它同类文章更好的结果：对一类可加Lévy过程得到了其局部时存在的充要条件。

Additivity of average mutual communication is proved, based on this, inequality for general correlation coefficients is derived, and the necessary and sufficient condition is obtained for equality.

证明了平均互信息的可加性，在此基础上得到了广义相关系数不等式，并给出了等式成立的充要条件。

Based on which, a necessary and sufficient condition for the existence of controllers is derived and the analytic expression of expected controllers is proposed.

汽约束下具有鲁棒稳定性的充要条件，在此基础上，得到了Delta算子系统状态反馈控制器存在的充要条件和解析表达式。

The reason of anole boss capricing is that he is unwilling to respond.It's the representation of insufficient confidence.Therefore,as a worker,you should supervise and urge him to mend.You should remember clearly what he said and what he explain in any condition.If necessary,you can record that on the paper or computer to prepare the need.Actually,such habit is a good work attitude.

变色龙老板之所以善变，主要是因为他不愿意承担责任，是他信心不足的表现，所以，作为打工族，应"督促"他改正，他在任何情景下说过的话、交代过的事情，一定要记清楚，如有必要，你可以记载在纸上或电脑之中，以备及时之需，实际上，这种习惯也是一种良好的饿工作态度。

To actualize condition-based maintenance for Metal-Oxide Arrestor, which is a kind of important device used to restrain overvoltage in the electric power system, the research of on-line monitoring of MOA is important and necessary.

金属氧化锌避雷器MOA作为电力系统重要的过电压保护设备，对其开展在线监测是实现状态维修的必然要求。

At the same time,the other necessary and sufficient condition is obtained for causality and asymptotic stability of the systems.

目前对于稳定性研究主要采用的是Lyapunov方法，Lyapunov方法在控制系统的研究中起着非常重要的作用，很多的研究学者已将这种方法推广到广义系统中。

In this paper, we discuss asymptotically stable sets of graph maps and give a necessary and sufficient condition for a fixed point of f to be asymptotically stable.

在本文中，我们讨论了图映射的渐近稳定集，并给出了f的不动点为渐近稳定的一个充分必要条件。

Then the eigenvalues of the closed loop system is studied and the necessary and sufficient condition for the closed loop system to be asymptotically stable is derived.

其次，对相应的闭环系统特征方程进行详尽的讨论计算，得到了系统本征值的分布特性，从而利用Lassel 不变原理得到了闭环系统渐近稳定的充分必要条件。

Thispaper proposed a necessary and sufficient condition for the well-posedness and attainability ofthe modified regulator problem. Furthermore, the state corresponding the optimal control has amean-square convergence rate faster than the given rate.

本文研究了一类带稳定度约束的无限时域不定随机LQ问题，给出了问题适定和可达的充要条件，且保证最优控制作用下的闭环系统具有不低于给定的均方收敛速度。

Unmarriedness and maleness are each individually necessary conditions for bachelorhood; together, these criteria represent a sufficient condition for bachelorhood.

未婚状态和男人身份，各自是单身汉身份的必要条件；放在一起，这两个条件就是单身汉身份的充分条件。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。