查询词典 numerical system

On the data platform, powerful system software and numerical models are ...

在这一平台和环境中，以功能强大的系统软件与数学模型对黄河治理开发和管理的各种方案进行模拟、分析和研究，并在可视化的条件下提供决策支持，增强决策的科学性和预见性。

Finally, numerical results of the system performance for the aforementioned scenarios are presented.

最后，对於此架构在前述不同场景下，提供了数值模拟结果。

According to optimetic theory, the shaking table tests and numerical analysis, the optimation design method of base isolation system is presented.

应用优化理论，通过振动台匹配试验及计算机分析确定了隔震体系的优化设计方法。

Two degrees of freedom numerical control sliding table based on embedded microcontroller is a typical system of mechantronics .

基于嵌入式微处理器的两自由度数控滑台是典型的机电一体化系统，包括机械系统、电子信息处理系统、动力系统、传感检测系统和执行元件等。

Combined with results of theory,shaking table test and numerical simulation,dynamical interaction and aseismic capability of soil-structure system are studied and analyzed based on analysis of theory and calculation.

采用数值仿真试验进行结构地震反应的理论和计算分析，将理论分析结果、振动台试验结果和计算机仿真结果三者结合起来，研究和分析地基–结构动力相互作用及其抗震性能。

To high-precision ring permanent magnet torque motor servo system used in direct drive numerical control rotary table with the request of smooth operation at low speed, the precision is mainly restricted by cogging torque.

中文摘要：对于要求在低速下能够平稳运行的高精度直接驱动数控转台用环形永磁力矩电机伺服系统，它的定位精度主要受到以齿槽转矩为主的扰动力矩的影响。

For the characteristic of the ring permanent magnet torque motor used in direct drive numerical control round table suffering from the effect of load disturbances and parameters variations, a multi-objective mixed H2/H∞ static output feedback controller, which makes all poles of the closed-loop system be located within a prescribed linear matrix inequality region D to achieve pole placement, is designed based on LMI.

针对直接驱动数控转台用环形永磁力矩电机易受负载扰动及自身参数变化影响的特点，文中基于线性矩阵不等式(linear matrix inequality， LMI)，设计了一个多目标混合H2/H￥静态输出反馈控制器，该控制器可使闭环系统的极点均落在预先选定的线性矩阵不等式区域D内来实现极点配置。

The system state transition matrix is deduced, so the zero effort miss of the interceptor can he solved with numerical method under considering the earth's oblateness effect of J2. In order to make the thrust direction change smoothly and make the zero effort miss decrease quickly, the engine thrust is decomposed along the line of sight direction and perpendicular to the line of sight direction, and the distribution proportion coefficient is designed based on the required velocity gain normal to the line of the sight.

推导了系统状态转移矩阵，通过数值方法求解得到考虑地球扁率J2摄动项的拦截器零控脱靶状态，在此基础上将推力分解到视线方向和垂直视线方向，并根据垂直视线方向需要速度增量大小设计了推力分配比例系数，使得推力方向平稳变化且能快速减小系统的零控脱靶量。

Based on the mechanisms for stress-assisted corrosion problem in oil-pipe system, authors have carried out numerical simulation, with application of Charles-Hillig Model 10 to study the behavior of crack propagation, where the advanced front-tracking method has been employed for finite element mesh construction and re-construction.

基于油气管道表面微裂缝在应力和腐蚀耦合作用下的扩展机理，根据Charles-Hillig模型用数值方法模拟了裂缝的动态扩展过程。研究的重点是确定裂缝扩展时的形态以及可以避免应力腐蚀现象的载荷和环境条件。

Based on the mechanisms for stress-assisted corrosion problem in oil-pipe system,authors have carried out numerical simulation ,with application of Charles-Hillig Model[1] to study the behavior of crack propagation,where the advanced front-tracking method has been employed for finite element mesh construction and re-construction.

基于油气管道表面微裂缝在应力和腐蚀耦合作用下的扩展机理，根据Charles-Hillig模型用数值方法模拟了裂缝的动态扩展过程。

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。