简单明了

In view of the precision problem of the forging parts of train axles occurred in the course of forging on the rapid forging hydraulic press, the cause of the problem was analyzed.

针对列车车轴在快速锻造液压机上锻造时出现的锻件精度问题，分析了问题出现的原因，用图示的方法揭示出问题所在，简单明了。

It is fraud, plain and simple.

这是欺诈，简单明了。

They are usually plain and simple, but they are very important in function.

它们通常是简单明了的，但他们是非常重要的作用。

The plain, unvarnished truth is...my mother was a hellion in her own youth.

简单明了的事实是……我妈年轻的时候也是个捣蛋鬼。

The problem with Congress is that it is a many-headed monster, ill-suited to making hard choices or producing neat solutions.

国会的问题在于它是一只多头的巨兽，每次要做重大的决择，或是需要给出简单明了的解决方案时，都会遭遇困局。

Simple, clear purpose and principles give rise to complex and intelligent behavior.

简单明了的宗旨及原则能衍生出复杂及明智的行为。

BACKGROUND: Modern, video laryngoscopes provide an easier view of the glottis, possibly facilitating easier intubations.

背景：由于可视喉镜的应用，声门暴露变得更为简单明了，从而使气管插管变得更为容易。

In our thesis, contents are organized as following In Chapter 1 we present our topic's internal and overseas research situations, theoretical and practical significance, and introduce the research object and contents, and the main contributions of this dissertation. Chapter 2 reviews the development of the stability results for nonlinear systems and some relevant recent results, which include Lyapunov and LaSalle-Yoshizawa theorems for nonlinear systems, and stochastic edition for stochastic nonlinear systems. Sontag's formula for systems affine in control is presented in the frame of CLF. The concepts of disturbance attenuation and the inverse optimality are also explained in this Chapter. In chapter 3 we present the solvable theorem of inverse optimal gain assignment problem, design the inverse optimal controller and the inverse optimal tracking controller for strict-feedback nonlinear continuous systems with unknown time-varing bounded disturbances and constant unknown parameters using an adaptive backstepping algorithm, which are nonlinear, continuous and are easier to realize. These designs are fully systematic and the algorithm can be directly coded in symbolic software. The results of simulation show the effectiveness of the control algorithms.

论文的结构如下：在第1章中，给出了本文研究课题的研究现状、理论意义和实际应用，并介绍了本文的研究对象、研究内容以及主要贡献；在第2章中，针对确定性非线性系统和随机非线性系统，分别介绍了Lyapunov定理、LaSalle-Yoshizawa定理及其随机版本；对仿射系统，在控制Lyapunov函数框架下，给出了Sontag公式；同时给出了非线性系统扰动抑制和逆最优控制问题的基本概念；在第3章中，针对具有未知时变有界扰动和未知定常参数的一类不确定非线性系统，给出并证明了逆最优增益配置可解定理，使用自适应Backstepping算法和均值定理，系统地设计了自适应逆最优控制器和逆最优跟踪器，这种设计方法可同时获得逆最优控制策略和自适应律，简单明了，仿真结果表明该控制算法的有效性，并给出了性能估计。

Generally, judicially noticed evidence is a straightforward fact, an indisputable issue, or a bit of common knowledge.

通常，司法认知的证据是一种简单明了的事实，是一种无可争辩的问题，或者是一些常识。

The uncluttered view out to the sea that we offer is the initial shocking element at Kauri Cliffs and, as is often said by golfers at the finish, the golf course matches the view.

简单明了的景色一直绵延到海边，这是 Kauri 峭壁领世人震惊的最初原因，很多球员打完球后也都赞叹说球场与周边的景色相得益彰。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。