不确定性

这种局面所造成的不确定性肯定让你感到困惑。

The uncertainty created by this situation must be confusing for you .

不确定性令投资者裹足不前。

Uncertainty is a discouragement to investment .

本文对经济法的不确定性的研究侧重于经济法在动态意义上的不确定性，即经济立法、经济执法和经济司法的不确定性。

The thesis puts emphasis on the uncertainty of dynamic economic law , including the uncertainty of economic law 's legislation , execution and judicature .

难以保持工作生活平衡的部分原因就是来自于未来的不确定性。

" Part of the work-life issue has to talk about uncertainty about the future . "

交通拥挤引起的成本上升以及不确定性等都让投资者望而却步。

Traffic jam leads to expense and unpredictability , things that keep investors away .

获奖的不确定性通过情感上让人‘兴奋’从而为人们提供了额外的吸引力和诱惑力。

" The uncertainty of winning provides added attraction and desirability through emotional ‘ thrills . ' "

这个表达就是描述那些因为股市不确定性而没有能力或者不愿意采取行动的股市投资者的状态，他们就像是突然被车灯打到身上而被吓得不能动弹的鹿。

The term is used to illustrate - like deer who freeze when " caught in the headlights " of a vehicle .

该机构还警告说，尽管疫苗有望刺激经济反弹，但全球经济复苏仍充满不确定性。这份由联合国国际劳工组织发布的报告预测，2021年的工作时间可能仍将比2019年减少3%以上，大约相当于9000万个全职工作岗位。

It also warned that recovery remains . Working hours in 2021 are likely to remain more than 3 % lower than they were in 2019 - roughly the equivalent of 90 million full-time jobs , predicts the report , by the UN 's International Labor Organization ( ILO ) .

现代经济学在风险和不确定性决策问题上的传统理论模型是期望效用模型（ExpectedUtilityTheory）。

Expected Utility Theory is the classical model in the risk and uncertainty decision-making .

具有极点配置的不确定性机器人鲁棒H∞控制

Robust H_ ∞ Control with Pole Placement for an Uncertain Robotic Manipulator

参数和时延不确定性离散时间系统的H∞鲁棒控制

Robust H_ ∞ control for discrete-time systems with parameter uncertainty and time-delayed uncertainty

矢量GIS中定位不确定性的几何图象表达

Geometric Image Display of Positional Uncertainty in Vector GIS

GIS数据之属性不确定性的研究

State of the Art of Research on the Attribute Uncertainty in GIS Data

磁悬浮控制部分采用具有输入解耦的参数不确定性H∞控制，来抑制参数摄动对控制的影响，保证悬浮高度的精确控制。

A robust control with input decoupling is used in the controlling part of the magnetic suspension .

GPSRTK在高速公路定线测量中的不确定性研究

Study on the Uncertainty on Expressway Staking with GPS RTK Technology

用矩阵不等式方法研究了数值界不确定性奇异大系统的广义输出反馈分散鲁棒H∞控制问题。

Decentralized robust H_ ∞ descriptor output feedback control for singular large-scale systems with uncertain value bound is studied by matrix inequality approach .

参数不确定性模糊大系统的保性能控制：LMI方法

LMI Approach to Guaranteed Cost Control of Fuzzy Large-Scale Systems with Parametric Uncertainty

GIS位置数据的不确定性研究如果能顾及误差的实际分布模式，可以得到更好的成果。

Better achievements can be expected if the actual distribution mode of errors is taken into consideration in the research of uncertainty in GIS position data .

研究状态和控制均存在不确定性的关联大系统基于状态观测器的分散鲁棒H∞控制问题，提出了一种基于观测器的分散动态输出反馈控制器的设计方法。

Section 2 studies the decentralized robust H ∞, observer-based control for a class of interconnected uncertain systems with time-varying uncertainties both in state and control matrices .

参数不确定性关联大系统的分散鲁棒镇定的LMI方法

Decentralized Robust Stabilization of Interconnected Large-scale System with Parametric Uncertainties : a LMI Method

研发核电站PSA软件不确定性分析和敏感性分析功能模块

Development of the Uncertainty and the Sensitivity Analysis Function Module in the Nuclear Power Station PSA Software

所得的控制律保证闭环系统对所有允许的不确定性是正则、稳定、无脉冲的且满足给定的H∞性能指标。

The control law guarantees that the closed loop system is regular , stable , impulse free as well as satisfies a prescribed H ∞ norm bounded constraint for all admissible uncertainties .

将适用于标称系统的时滞相关方法推广到具有时变不确定性的连续模糊时滞系统，提出了时滞相关的H∞模糊状态反馈控制器设计方法。

The dissertation extends the delay-dependent synthesis methods used in nominal systems to continuous fuzzy time-delay systems with time-varying uncertainties and proposes a design method for delay-dependent H_ ∞ fuzzy state feedback controllers .

对于像航空发动机这样复杂的非线性系统，基于对象精确数学模型的PID控制方法的自适应性较差，难以适应具有非线性、时变不确定性的被控对象。

Complicated nonlinear systems such as aircraft engines . PID control method which is based on precise mathematical model has poor adaptability and is not adaptive to nonlinear and time-variant plants .

针对含不确定性的连续系统，用Lyapunov型状态反馈对控制系统进行设计，给出了闭环不确定系统的鲁棒测量界。

The robustness bounds are derived for uncertain continuous systems based on Lyapunov type state feedback and a design methord of control system is given .

研究了连续时间Duffing混沌系统在具有不确定性扰动时的自适应跟踪控制问题。

The problem of adaptive tracking control for continuous-time Duffing chaotic system with uncertain disturbance was discussed .

利用LMI给出了带有不确定性扇形区域极点配置的可靠控制器存在的充分条件。

Based on LMIs , a sufficient condition for the existence of reliable control with uncertainty of pole configuration is given .

针对反恐维稳及抢险救灾事件发生的时间、接受指挥的对象，以及接受指挥的位置的不确定性，系统采用C／S和B／S相结合的架构模式。

Considering the uncertainty of happening time of terrorism and emergency disaster releasing events , command objects , places of command objects , this system uses the frame that combining C / S and B / S structure .

重点针对道路交通事故灰色和随机不确定性，研究了一阶单变量灰色预测模型，即GM（1,1）模型。

In light of the grey and stochastic uncertainty of the road traffic accident , an one-step and single-variable grey forecast model GM ( 1,1 ) has been investigated .

对于线性系统，本文针对其系统矩阵A存在一类不确定性扰动的情况，提出了一种基于遗传算法（GA）的新的参数估计方法。

This paper proposed a new method for parameter estimation based on genetic algorithms ( GA ) for linear systems in the case of its coefficient matrix with uncertain disturbance .