查询词典 weak basis

On the basis of the conclusion above, the nonlinear weak controllable vectors can be obtained, which compose the second class of weak controllable matrix, by means of matrix transfermations of the first class of weak controllable matrix. Furthmore the second criterion of weak controllability, accessibility and strong accessibility, which is more standard, more succinct and more practical, is obtained. On the basis of the first criterion and the second criterion, several important problems about nonlinear controllability are discussed, which include 1 local controllability; 2 three classes of local controllable decomposition, separately by means of local coordinate changes in the neighborhood of a nonsingular point, a point on a singular surface or a designated point x〓 with a designated input u〓; 3 the character of controllability of the ith state variable x〓 in different controllable areas and their boundaries.

在第一判别定理和第二判别定理的基础上，我们分析了非线性系统受控性质中的几个重要问题，所得到的结论包括i得到了非线性系统在可平衡点附近的能控性判别定理；ii分别给出了非线性系统在非奇异点、s阶奇面以及在状态空间内给定的一点x〓和输入u〓上的三种状态分解形式以及相应的求解方法；利用系统的Ⅰ型弱能控矩阵与Ⅱ型弱能控矩阵秩相等的条件，得到了只用系统的前n个弱能控向量来判断系统的弱能控性的判别定理；iii通过引入系统状态分量的三类受控区域边界的定义及相应的求解方法，初步探讨了非线性系统各个状态分量在不同的受控区域及其边界上的受控性质。

Due to its weak basis, Enshi elemnetary education, unadaptable to the fast development of society and economy in Central Plains of Hubei province, has become a heavy burden of Hubei in educational investment.

湖北少数民族地区有10个县，其少数民族人口占全省少数民族人口的94%，因为地处那西武陵山区，属老少边穷西部地带，少数民族教育发展基础薄弱，尤其是民族基础教育较之湖北高等教育差距极大，远不适应湖北中原地区大经济与社会大发展，成为湖北大教育的投入重负。

China is a developing cougntry.large population,weak basis,-economics.especially in country...

中国是一个发展中国家，人口多，底子薄，经济不发达，农村尤其不发达。

But limited by the social and historical environment, the level of people′s understanding and the relative weak basis in...

档案自然形成规律在理论上是不能成立的。

It is, at least, unclear what could ground such an inference since one case seems to provide a weak basis for an inductive argument.

至少，这样推理的基础是什么是不清楚的，因为这种情况似乎为归纳论证提供的是一个弱基础。

Higher education in other areas, especially the mountainous and backward areas such as the northern, western and eastern parts of Guangdong is with a very weak basis.

高等教育在其他领域，尤其是山区，如广东北部，西部和东部地区与落后地区是一个非常薄弱的基础。

The insurance industry is at its primary stage of development,with a late start, a weak basis and a narrow coverage.

中国保险业发展起步晚、基础薄弱、覆盖面不宽，仍处于发展的初级阶段。

Northwest weak basis for urban development, economic small volume, which for foreign investment in the property market has emerged in the Northwest High.

西北城市发展基础薄弱、经济总量小，这种连续的外来投资已经使西北楼市出现了虚高的趋势。

At the present, the difficulty of community self-governing lies not so much in a weak basis as in the instability that may result from self-governing.

目前社区自治的困难不是自治基础薄弱，而是自治可能导致基层的不稳定。

Emperors convoked councils, after the example of Constantine I and the Nicene Council, and pronounced on theological matters, providing some weak basis for speaking of "caesaropapism" in the Byzantine age. In this period three distinctive emphases of Orthodoxy emerged: theology as apophacticism, knowledge as illumination, and salvation as deification.

皇帝召集议会，后为例，君士坦丁，我和尼西亚会，并突出对神学的事项，提供一些薄弱的基础上的发言，&政教合一&，在拜占庭时代，在此期间，三个明显的重点正统出现了：神学作为apophacticism ，知识作为照明，和救赎作为神化。

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