不确定

Based on pretty performance of fractional Fourier transform, discrete fractional cosine transform adaptive filtering algorithm is proposed.

针对分数阶傅里叶变换的分数阶次不确定问题，提出一种寻找最优分数阶次的方法：建立分数阶次和失调的关系曲线。

The fault-tolerant control problem of discrete time-delay uncertain system is studied.

研究了离散时滞不确定系统的容错控制问题。

After having an analysis on uncertain optimization problems, the thesis introduces the research results of Ben-Tal and Bertsimas, and mainly has a detail discription on robust linear programming and robust discrete optimization.

论文在对不确定优化问题分析的基础上，对鲁棒优化研究的代表人物Ben-Tal和Bertsimas的研究成果进行了总结，重点对鲁棒线性规划和鲁棒离散优化进行了阐述。

Based on them, the concept of finite-time observer for the uncertain linear discrete system with state feedback and output was introduced.

对具有状态反馈和输出的线性不确定离散系统引入有限时间观测器的概念，可以保证在给定的有限时间区间内，观测误差小于一个给定的界，并给出了最优有限时间观测器的具体设计方案。

On the stability of discrete- time sliding mode control systems .

利用离散趋近律和灰色估计器结合起来设计不确定系统的变结构控制的方法是可行和有效的，保持了闭环系统的稳定性。

Fourth precision solution can be derived from two grid sets solution with a second precision central difference scheme by Richardson extrapolation. It reduces the amount of calculation. Uncertainty is determined from the discretization error analysis. A finer grid calculation is made to validate the extrapolation scheme.

对于2阶精度中心差分格式的2套网格数值解，用Richardson外推法可以得到4阶精度的解，其工作量比直接求解4阶离散方程的工作量减少许多；对于计算中的数值不确定度，用该方法分析了离散误差，并用逐次加密网格的方法探讨了外推法的合理性。

I'm not sure, but I think we should have more discussion on this.

我不确定，但我认为这件事还应该多加讨论。

There existed disjunctive effect on the college students in the process of disjutactive reasoning under uncertainty.

3大学生被试在不确定情景下的决策出现了析取效应。

There existed disjunctive effect on the college students in the process of disjunctive reasoning under uncertainty.

大学生被试在不确定情景下的决策出现了析取效应。

In this article, there were four experiments designed to study the characteristics and influencing factors in the solution of the college students to disjunctive reasoning problems under uncertainty.

本文设计了四个实验，考察大学生在不确定情景下，解决析取推理任务的思维特点及其影响因素。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐