查询词典 vector

When a rotating voltage vector is injected to the motor at standstill, there is a microinching when the voltage phase is line to the direct axis of the motor. Then the current will decrease due to the back electromotive force. The initial mover position is identified by this change.

电压相位和电机直轴重合时，产生的电磁推力超过负载阻力，电机有一微动，由于反电势的作用电流就会降低，通过检测电流矢量的变化来估计动子的初始位置。

The simulation results show that the vector control system based on this improved scheme has better dynamic and static performance. It solves a lot of problems such as larger error in the MRAS based on the back electromotive force when the motor runs across the zero speed and the instability based on the instantaneous reactive power in the regenerating mode and has high estimating precision.

仿真表明基于该方法的矢量控制系统动静态性能好，能有效解决反电动势模型参考自适应方法在速度过零点辨识误差大以及瞬时无功功率模型参考自适应方法在转速给定为负阶跃时转速不稳定问题，转速估计精度高。

In the predicted process, the forward simplification is used to get the interface equation, meanwhile taking the voltage of the concentrated grid as control vector to solve the control step length; in the correction process, by means of forward simplification and back substitution the Newton linearization incremental equations of both concentrated computational grid and contracted nodes are solved alternately.

进行计算时，通过前向简化形成预估环节的接口方程，同时以浓缩网络的电压为控制电压向量求出控制步长；校正环节通过双向迭代方法交替实现对浓缩网络和收缩节点的牛顿法线性增量方程的求解。

The system mainly consists files and maps of basic graphics system, graphics elements (possess for processing point, the line, face, network graphic elements), the graphics operations (possess for blowing up graphics and dwindling graphics, movement, backdate and other operational functions), graphics import and export (possess for the mouse coordinate mapping,graphics data coordinate imported), conventions and the use of line-type, the son-graphics of filling the function module, to achieve the basic functions of the vector graphics.

本系统主要包括基本图形系统的文档和视图、图形元素（具备处理点、线、面、网络等图形元素）、图形操作（具备图形的放缩、移动、回溯等操作功能）、图形输入和输出（具备鼠标交互绘制、图形数据交互输入）、定制和使用线型、子图填充等功能模块，能够实现基本的矢量图形的所具有的功能。

After induction with ethanol, the young leaves of transgenic tobacco showed albino.Then, the RNAi vector Bar2, which harboring the cDNA fragment of Ghkob, was constructed and transferred into cotton.

通过对转番茄红素脱氢酶基因(phytoene desaturase， PDS)片段的RNAi载体pAR8进行酒精诱导，证明了该酒精诱导表达载体的实效性。

The pattern spectrum entropy and the barycenter scale location of the spectrum curve were used to input data to the support vector machine to identify different types of signals.The experimental...

通过对实验数据的分析表明，形态学分析与支持向量机相结合的方法为轴承故障信号的分析、识别和分类提供了新的思路。

This the base of support vector vc the source code, used mainly for data mining areas.

这是支持向量基的vc的源代码，主要用于数据挖掘领域。

This thesis proposed MIMO Vector Base Learning Network, which can be used to model and classify.

在此基础上更深入提出了矢量基学习网络，推导了网络基的自动生成规则。

On the base of vector graphics, an information releasing model based SVG is brought forward.

在矢量图形的基础上，研究提出了一种基于可扩展矢量图的交互式图形化信息发布模型。

A simulation is made using this cognitive model, which proved that Vector Base Cognition Model is valid.

6对矢量基网络算法进行了更高层次的概括，提出了人类认知的矢量基模型。

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。