查询词典 uncertain

So the investment and financing policy of the port has now moved to the top the agenda. Since the policy of unloosing the investment proportion of external funds was issued, have seven years gone, it go through a historical course from expectation of policy issue as soon as possible, get to feel uncertain about the maneuverability and dynamics of policy execution, and how it adapt to situation development and change.

自我国放开港口投资股比政策颁布以来，迄今已有5年时间，这中间经历了一个从盼望放开港口投资股比政策早日出台，到放开港口投资股比政策执行的可操作和执行的力度，以及放开港口投资股比政策如何适应形势发展变化而发生疑惑的历史过程。

The problem of robust adaptive tracking for a class of uncertain nonlinear systems with linear unknown parameters and unmodeled dynamics is discussed.

讨论了一类含线性未知参数和未建模动态的不确定非线性系统的自适应跟踪问题，通过backstepping过程给出了自适应控制规律。

And considering the uncertain factors that the system may meet during the operation, a H robust control algorithm is employed when devise the controller of the system to compensate disturbances and unmodeled factors of the system. Finally, simulation and experiments are done to test the systems robustness and performance.

鉴于系统工作过程中存在的各种不确定性因素，系统控制器的设计采用了H_∞鲁棒控制算法，以抑制系统的外界扰动以及被控对象的模型不确定性，并进行了系统仿真和试验台试验研究。

For linear uncertain system, on the condition that parameter uncertainty and unmodelled dynamics uncertainty exist, the method of solving problem of robust H〓 control and robust adaptive control is researched, and its advantage, disvantage and scope of usage are described.

本文的主要工作可以归纳如下： 1、针对线性不确定性系统，分别研究了存在参数不确定性和未建模动态不确定性的情况下，鲁棒H〓控制和鲁棒自适应控制两种控制方法各自解决问题的方法，并阐述了它们的优缺点及适用范围。

It isshown by theories and simulations that uncertain effects such as frictions and external disturbancesor unmodelled dynamices can be eliminatated and global exponential stability or global uniform ultimate boundedness stability can be guaranteed.

理论和仿真均证明，系统的不确定性诸如摩擦力、外部扰动及未建模动力学带来的不确定性影响，均可被设计的控制律补偿，最后可保证全局指数收敛或全局一致最后有界的结果。

The scene at the moment mixed with that in the past becomes uncertain and unoriented. However, we can't help to think about the question that whether the history can be washed away so easily?

眼前的景物混合着过往的沉积，变得毫无方向与不确定，但是我们不禁要思考：历史的沧桑是否就能这样被轻易地揉掉呢？

However,the situation is that everything is uncertain at present, so ,even though you meet him at the unproper time ,how do you balance among these compl

可是这首歌却深深的留在了我的记忆深处，每每听到心中都会有一丝的触动，那眼神，那个他总会再次在我眼前浮现。

Believe or not, this is the life of a working aritste - uncertain, unsecure, unknown but keeping awake to be 24 hours stand by.

信不信由你，这就是一个艺人的工作最好的写照----不确定，没安全感，不清楚，却要保持清醒，24小时stand by。

Affected by excavation and other uncertain factors, the monitoring data of rock pressure is an unsmooth time series, which includes trend term and random part.

围岩压力是隧道开挖后重要的反馈信息之一，受不确定性因素影响，围岩压力监测数据是一个不平稳的时间序列，包括趋势项和随机项。

Because the time limit of the loan is long in the medium and long term credit, there are many uncertain factors, very risky, lacking the effective risk analysis means all the time in the past, had assessed existing unstayed, the question that the project is on that support blindly, has formed a lot of non-performing assets.

中长期房地产信贷由于房地产信贷期限长，不确定因素多，风险很大，过去一直缺乏有效的风险分析手段，存在着测评不规范，盲目支持上项目的问题，形成了许多不良资产。

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