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The latter two all reckon that basic shape of line element error band based on control points error is "dumbbell-shape",i.e.error in control end points is larger than points error between two control points.

后两者均认为以控制点点位误差描述的线元的误差带的基本形状呈"哑铃"形，即认为线元上端点的位置不确定性大于端点之间的点的位置不确定性。

In addition, under information technology environment, the focus of internal control has turned from control of business process to the control of computer information system.

另外，在信息技术环境下，由于业务环节和交易方式的改变，内部控制的重心从对业务过程的控制将转向对计算机信息系统的控制。

In chapter 5, we discuss control of a new four dimensional chaotic systems by feedback control and impulsive control methods.

第六章主要介绍了复杂网络和混沌系统方面的一些正在研究和即将研究的课题。

The general orthogonal polynomial is adopted for model approximation of DPS and the predictive control of DPS is translated into the lumped one. Model algorithmic control is applied to deal with the lumped parameter system and a control law is given. The predictive controller of DPS is obtained by inverse transformation. The method and steps are discussed in detail.

该方法采用广义正交多项式对分布参数系统的模型进行逼近，将离散时间分布参数系统的预测控制问题转化为集中参数系统的预测控制问题，运用模型算法控制方法对集中参数系统进行预测控制，求出控制律，经反演变换得出分布参数系统的预测控制。

With the merits of space vector modulation: digitized control,harmonic decrease,high ratio of voltage used,fast dynamic response and so on,and at the same time deadbeat and DSP control is introduced, as well as two-loop control of the system,we gained power factor is near unit and current THD is well below 10% in our digitized arc welding power system.

基于空间矢量脉冲宽度调制技术的易于数字化、可降低谐波、电压利用率高、动态响应快等特点，引入无差拍思想、总体系统的双环控制思想和DSP控制，实现了功率因数为1，电流谐波畸变远小于10％弧焊电源系统的数字化。

The in paper discnssed to mathematical model of quality control for TMP pulp,establishing an set mathematical model for consistency control and interstice control of disc refiner.

通过TMP盘磨机磨浆的大量试验数据，提出并建立了控制磨浆质量的数学模型，即控制磨浆浓度的数学模型和控制盘磨间隙的数学模

The control objective is achieved by firstly using robust passivity to stabilize the linear subsystem, and then with resort to switching control technique to guarantee the invariance of the specified region in state space simultaneously. Hence, a sufficient condition for the robust invariance switching control of this class of systems is derived.

控制思想是首先通过鲁棒无源性技术来镇定线性子系统，再借助切换控制技术得到系统轨迹对于指定区域的正不变性，从而得到了该类系统鲁棒不变切换控制的充分条件。

Though nowadays microwave therapy apparatus has realized digital control technically, the control result is not perfect because of the characteristic of microwave source and other factors. With the highly informatization of medicine, all kinds of medical apparatuses need computers to manage the medical data. The new kind of microwave therapy apparatus in this thesis has not only realized the steady control of microwave output power, but also developed a remedial record database management system based on LabVIEW, which has realized the medical informatization.

目前的微波治疗机虽然技术上实现了数字化控制，但是由于微波源本身的特性以及其它因素，控制效果并不理想；随着医疗信息化的快速发展，各种医疗仪器还需要进行医疗数据的计算机管理，本文介绍的新型微波治疗机，不但实现了微波功率的控制调节稳定，而且开发了基于LabVIEW平台的病例资料档案的数据库管理系统，实现了医疗的信息化管理。

The third chapter is about the optimal control for a class of age-dependent competitive population dynamics with diffusion, the continuity properties of the system solution in terms of the control variable is certificated, the Normal cone theory is applied and the necessary conditions of optimal control problem is obtained.

第三章研究了一类年龄相关的具有空间扩散的竞争种群系统最优控制问题，证明了最优解关于控制变量的连续依赖性，应用法锥理论，得到了最优解的必要条件。

It is suggested that the integrated ragweed management which combines plant displacement with physical control based on biological control will be a major approach for control of ragweeds in the future.

提出以生物防治为主体，结合植物替代控制和物理防治，尽可能地不实施化学防治的的综合治理体系是未来豚草防治的一个主要途径。

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。