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一是
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  one is
     One is the forestry production cycle is long and low benefit.
     一是林业生产周期长,效益低;
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     The ways of how to communicate between SPSS and Word by OLE object are discussed,one is programming in Saxbasic script language provided by SPSS;
     讨论了借助OLE对象如何实现SPSS与Word间通信的方法,一是利用SPSS内部提供的SaxBasic script编程实现;
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     It is usually believed that company capital system has two functions: one is to ensure the basic capital for the company's efficient operation and the other is to protect the creditors' interests with the help of the company's registered capital.
     一般认为公司资本制度具有两个功能:一是有效落实公司业务展开所需要的基础资本,二是借助公司注册资本保护债权人利益,但是世界范围内公司资本制度的发展却体现出逐渐放弃债权人保护功能的趋势。
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     This contribute has two parts:the one is to profit of enterprise,the other is to it's tactic.
     这种贡献有两各表现形式:一是对企业盈利的贡献,另一种是对企业战略发展的贡献。
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     At the present, there are mainly two methods of analysis foundation pit excavation, one is theclassical analysis method taking the limit equilibrium means as the dominant factor, the other isthe numerical analysis method taking the plane finite element means as the dominant factor.
     目前基坑开挖的主要分析方法有两种,一是以极限平衡方法为主的经典分析方法,另一种则为以平面有限元法为主的数值分析方法。
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  “一是”译为未确定词的双语例句
     Government could perform this duty with three countermeasures: first,it is to rapidly increase the investment and accumulating in rural human capital which is the premise of the improvement of rural HR ability;
     政府能否成功履行这一责任,取决于以下三个对策实施得如何:一是大幅度增加农村人力资本的投资和积累,这是农村人力资源能力提高的前提;
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     The paper discusses the teaching methods of modern university in three aspects: the basic connotation of the teaching methods of modern university;
     主要从以下三个方面论述现代大学的教学方法:一是现代大学教学方法的基本内涵;
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     There are four features in the teaching under the cultivation mode of "reality" and "coupling". Firstly,it is the process to develop the students' quality.
     “实境”与“耦合”人才培养模式指导下的教学过程,具有四方面的特征:一是全面促进学生职业素质提高的过程;
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     that the whole quantity of active substance could be divided into the two parts:one came from free phenol,the other from walnut shell liquefied products;
     液化体系内总的活性量由两部分组成,一是液化体系内游离苯酚贡献的活性量,二是体系内液化产物贡献的活性量;
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     net and embedded microprocessor ARM9 were applied to develop a portable GPS navigation instrument,in which the GIS functions were realized on S3C2410 board,and GIS was integrated with GPS to realize map database search,position navigation,routine optimization,wireless communication,electric map update and so on.
     net和嵌入式微处理器ARM9,开发了手持式GPS导航定位仪。 系统主要包括两部分:一是在S3C2410开发板中实现了GIS功能,二是实现了GIS与GPS的集成,实现了地图数据库查询、定位导航、路径寻优、无线通信、电子地图更新等功能。
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  相似匹配句对
     一.
     .
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     L~(-1).
     Ll。
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     First is the language.
     语言。
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     Second, cross-course writing.
     情境写作。
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  one is
The first one is a conjecture of Ian Hughes which states that iff1, ..., fn are primary invariants of a finite linear groupG, then the least common multiple of the degrees of thefi is a multiple of the exponent ofG.
      
We describe two opposite direction functors between Kronecker webs and integrable bihamiltonian structures: one is left inverse to the other.
      
With this construction, one is able to construct local sinusoidal bases and lapped orthogonal transforms (LOT) on arbitrarily shaped regions.
      
The first one is based on the use of the generalized Calderón reproducing formula and multidimensional fractional integrals with a Bessel function in the kernel.
      
The last one is being reported for the first time from this plant.
      
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In ordinary sampled-data control systems the system response to a step input can reach its equilibrium state only within n or more sampling intervals (n is the order of the controlled plant). In this paper multiple-impulses are used, instead of ordinary simple impulses, to speed up the system response. In such sampled data systems the system response to step input can reach its equilibrium state within less than n, even one, sam-pling intervals. Methods of design of such kind of sampled-data systems and their...

In ordinary sampled-data control systems the system response to a step input can reach its equilibrium state only within n or more sampling intervals (n is the order of the controlled plant). In this paper multiple-impulses are used, instead of ordinary simple impulses, to speed up the system response. In such sampled data systems the system response to step input can reach its equilibrium state within less than n, even one, sam-pling intervals. Methods of design of such kind of sampled-data systems and their com-ponents are discussed. In the last part of the paper methods of compensating sampled data systems with dead time elements is also considered.

在通常的脉冲控制系统中,当输入信号是阶跃函数时,系统的过渡过程至少在n个采样周期内才能完全结束(n是控制对象的阶数).文中考虑了采用宽度不等的多拍脉冲代替通常的单拍脉冲以加快系统的过渡过程.在采用多拍脉冲以后,系统的过渡过程可以在少于n个采样周期内,甚至在一个采样周期内完全结束.文中叙述了这种脉冲系统的综合方法,也讨论了系统中有关组成部分——脉冲组成器和校正装置——的构成方案及其参数的计算方法.最后并考虑了由于时滞引起的对系统动态特性有害影响的补偿问题.文中举有例题,对文中各节内容作必要的说明.

In this paper the general synthesis problem of optimal control systems with the criterion of transient responses as a positive integral functional (3) is discussed.In the first part it is assumed that the motion of controlled object is described by a system of ordinary differential equations and that the final states of the system form a bounded and closed convex region in n-dimentional euclidian phase space. A method is proposed for finding all optimal control functions which lead any starting state into the...

In this paper the general synthesis problem of optimal control systems with the criterion of transient responses as a positive integral functional (3) is discussed.In the first part it is assumed that the motion of controlled object is described by a system of ordinary differential equations and that the final states of the system form a bounded and closed convex region in n-dimentional euclidian phase space. A method is proposed for finding all optimal control functions which lead any starting state into the given final region of states. Some conclusions are obtained from the maximum principle by using transversal conditions of optimal trajectories in terminal points, and the particular properties of the stated problem are pointed out. The case of linear dif-ferential equations with integral quadratic functional criterion is investigated in detail.Further, in the second part the fundamental properties of isoloss regions, the rela-tions between the isoloss region and optimal control functions are indicated. As a direct result a partial differential equation determining the optimal loss-function J (x) is found and the connection between function J (x)and optimal vector control function u (x) is also stated. The methods proposed are practically the extension of the me-thods used by us for designing time optimal control systems as seen in [5, 6 ,7].Finally, an example is illustrated with optimal trajectories shown in phase plane.The necessary numerical data is calculated by an analog computer with high accuracy.

文中研究了具有公式(3)表示的一般正积分泛函的最优控制系统的综合问题.在第一部分中研究了具有控制参数的一阶微分方程组.控制系统的终点状态为n维相空间内的某一逐段光滑边界的闭性区域Ω.文中指出了根据极大值原理和轨道终点的横截条件寻找引到Ω的所有最优轨迹的方法.这里详细地研究了具有二次泛函和被积函数中不明显含有控制参数的质量指标泛函的线性方程情况.在文中第二部分研究了等损耗区的主要特性.指出了等损耗区与最优控制函数之间的关系.导出了求算最优损耗函数J(x)的偏微分方程,以及这一函数与最优控制函数u(x)的关系.上述方法是我们曾在文献[5,6,7]中用过的最优快速系统的综合方法的推广.文章最后举有例证.

In this paper the logical structure of contactless telemechanical system for distributed objects is discussed. A simple method of variable system structure for transmitting and receiving telemechanical information is adopted. The idea is that the information oc-curred in every controlled point (station) and the information of some of those objects,which frequently change their states, are transmitted continually and cyclically, while for other objects their information is transmitted only after any change in...

In this paper the logical structure of contactless telemechanical system for distributed objects is discussed. A simple method of variable system structure for transmitting and receiving telemechanical information is adopted. The idea is that the information oc-curred in every controlled point (station) and the information of some of those objects,which frequently change their states, are transmitted continually and cyclically, while for other objects their information is transmitted only after any change in their states. Thus,the speed of operation will be increased, and also the error probability of system syn-chronization will be decreased. For the realization of the variable logical system struc-ture, several blocks are used repetitively. For example, two commutators and one sim-ple logical unit are used to construct a simple automatic sequential encoder, and at the same time, the two commutators are used also to operate as a matrix commutator for receiving telesignalling information etc. Therefore the system is comparatively simplified and attains a higher degree of "minimization".

本文研究了无触点集中-分散目标远动系统的逻辑结构.文中提出了采用简单的系统变结构来发送和接收信息的逻辑结构方式.对被控制点及一部分比较重要或变化比较频繁的被控制目标的信息,保留了循环传送,而对大部分变化比较慢的被控制目标则采用目标有变化时才传送信号的方式,这样就提高了系统的平均动作速度,同时也减小系统的失步概率.文中采用环节的复合利用及简化的逻辑单元线路来实现这种系统的逻辑结构.例如用两个分配器和一个简单的逻辑单元“和”线路组成了很简化的选点自动程序编码器,同时这两个分配器又复合利用兼组成目标信号接收矩阵式分配器等,因而可以使得这种系统同时又具有较高的极简化度.

 
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