扰动

The controlled structure is subject to arbitrary, unmeasurable and uncertainty disturbance forces and initial displacement.

受控系统受到任意不可测量和不确定性外部扰动以及初始位移。

According to extensive sensitivity analysis, this method has a good stability and can solve the unposed problem which often appears in inverse problem.

并用该方法构造了参数识别的有限元迭代格式，及进行了离散，得出了伴随方程定解问题和参数扰动梯度的离散公式。

The model errors or uncertainties and disturbances in manipulation make the position errors unpreventable.

而机械手模型的不确定因素和外界的扰动又使这种位置误差不可避免。

However unsettling you find it,you can never be unthought or unknown.

不管你觉得它如何的扰动你，你已经不能想象它们了。

There arises tranquillity of mind with the characteristic of quietening the disturbances of consciousness and its mental concomitants; and along with it appear mental agility, etc.29 When walking, standing, sitting, or reclining there is, under the influence of these mental qualities, no disturbance of consciousness and its mental concomitants, nor heaviness, rigidity, unwieldiness, sickness, or crookedness.30 Rather, his consciousness and its mental concomitants are tranquil through having reached the supreme relief in non-action.31 They are agile in always functioning swiftly; they are pliant in being able to attend to any object desired; they are wieldy, in being able to attend to an object for any length of time desired; they are quite lucid through their proficiency, that is, through the ease with which insight penetrates the object; they are also straight through being directed, inclined, and turned only towards wholesome activities.

心轻安也会出现，具有让心和心所平静的特征，心轻快性等心所法也会伴随出现。由于心轻安等的作用，无论行住坐卧，心和心所都保持宁静而无扰动，没有粗重、僵直、不适、病态或扭曲的状态出现。此时，心和心所因为无作而极轻松，所以是轻安的；运作轻灵快捷，所以是轻快的；能够自在转向欲观照的所缘，所以是柔软的；对任何所缘的观照时间能随其所欲，所以是适业的；很容易深入清楚观照所缘，所以是明静的；总是朝向善行、倾向善行、转向善行，所以是正直的。

On the basics of chapter three, a new scheme of photon acceleration by which the large amplitude nonlinear density perturbation excited by a finite length driving beam in plasmas is used to upshift the frequency of an ultrashort laser pulse.

第四章在第三章研究基础上，提出一种新的光子加速机制，即，利用有限长电子束激励的大振幅非线性等离子体电子密度扰动来对入射的光脉冲进行加速。

In accordance with the characteristics of wind power generation,a maximum power point tracking algorithm based on the variable step of the velocity to acquire the .

针对风力发电的特点，采用了一种基于变步长转速扰动的最大功率点跟踪算法。

So the evolutionary equation of PSO is rewritten without the particle velocity variable.

本文提出了无粒子速度参量和带极值扰动的粒子群优化方法。

It is shown that under certain condition the convection may also develop in a stable stratified atmosphere, because the ambient wind field and stratification variate with the development.

分析结果指出，对流除在不稳定和中性稳定层结条件下可以发展外，在稳定层结条件下也可以得到发展，并且扰动的振幅最后均趋于有限值。

RESULTS The SOD activity had linear correlation with pH in the range of pH 2.2-8.0 when SOD concentration was fixed. The varication of activity after ultrosonication had linear correlcation with fluoresent intensity at 340 nm. With increase of uhtrosonic frequency, the microenviroment of tyrosine and tryptophan inside the SOD molecule was changed, then the balance of hydrophokicity and hydrophilicity inside the molecule was broken, this induced the blue shift of synchronous spectrum band and decrease of SOD activity.

结果 SOD浓度一定、pH2.2~8.0时，活性与其线性相关，超声后活性差值与340 nm荧光强度差值的线性相关；随着超声次数的增加，蛋白质SOD分子内部的酪氨酸、色氨酸所处的微环境被扰动，打破了分子内部的疏水和亲水平衡，使蛋白质的活性降低，在荧光检测中观察到普通荧光谱带蓝移，同步荧光的荧光峰位总体呈现峰位蓝移和强度下降。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。