查询词典 vector algebra

Methods The risk of vector-borne diseases occurrence,nuisance and adverse impact caused by vectors was advanced by analyzing the species,density and the damage of vectors in recent years in Beijing.Control strategies were established according to the monitoring results of the vector population density,resistance and the pathogens in Olympic venues and in urban areas during 2005-2008,as well as the selection of effective control method and management measures.Results The risk of vector-borne diseases occurrence and nuisance caused by vectors existed in Beijing.

通过对近年来北京市病媒生物种类、密度消长特点以及危害程度的分析，提出奥运会期间媒介生物性传染病发生的危险性以及病媒生物可能造成的骚扰与不利影响；根据2005-2008年奥运会场馆及城区病媒生物密度、病原与抗药性监测结果，以及安全、环保、有效控制和管理措施的筛选，制定奥运会期间病媒生物控制保障策略。

Establish displacement vector equation of mechanism using vector method to infer the speed and the acceleration vector equation .

运用矢量法建立机构的位移矢量方程，推导出速度、加速度矢量方程。

In this paper, according to the equation of voltage vector of single-phase motor operating at symmetrical condition, author presents a new voltage-vector PWM method of variable frequency control for single-phase motor. In system, the voltage vector is used as a control parameter.

本文根据单相电动机对称运行时的合成电压矢量方程，提出了以合成电压矢量为控制量的单相电动机电压矢量式PWM变频调速控制方法，并进行了计算机仿真及制作了单相变频器。

Raster Polygon can not only optimize Gerber to accelerate speed of file manipulation but also can give an exactly description on image better than vector polygon. It became a best replacement solution for vector polygon. UltraVision AOI can support Raster Polygon and also can avoid distortion caused by raster when revolute to Vector.

光栅式多边形填充不仅能够优化Gerber文件从而提高文件处理速度，并且比矢量式多边形填充更能对图形进行准确的描述，是后者的最佳代替方案，UltraVision AOI支持光栅式多边形填充，最大程度的避免因光栅转换成矢量而产生的图形失真。

In this paper, a lot of research works of algorithms of mining CAD has been done. Many important mine specialty graph operation algorithms have been put forward. The main results are as follows: polygons cut out algorithm, two close polygons mutual, merge and subtract algorithm, polygon vector fill, any vector polygons area calculating and sequence polygons or multifold which has the direction and region area calculating, curve smoothing, graph element search for any region, graph element attrib collect in any region, parallel polygon or vector intersection-point push out or pull in, ore reserves and grade calculating for any type polygon, mine spatial data searching and boundary line tracking and automatic link algorithm etc.

论文在矿山图形算法研究方面做了大量的工作，提出了许多有价值的矿山专业图形运算算法，主要算法有：多边形裁剪算法、闭多边形的加、减、并算法、多边形的矢量填充算法、任意有向多边形、有向多连域、有向多边形序列面积算法、多种曲线光滑算法、任意区域的图元搜索算法、任意区域图元属性提取算法、多边形平行外推/内缩算法、任意多边形储量品位计算、矿山空间数据搜索算法、界线的自动追踪和连接等。

In order to deal with attributes reduction, one of the major problems in rough set theory, an attributes reduction algorithm was proposed based on scan vector, and a new conception of discernible vector was defined by which the information table can be transformed into discernible vector sets.

针对粗糙集理论中属性约简问题，提出了一种基于扫描向量的属性约简方法。

This paper proposes a general method based on Principal Component Analysis to analyze network anomalies. The method divides the traffic matrix into normal subspace and anomalous subspace, maps the traffic vector into normal subspace, gets the distance from detected vector to average normal vector, and detects anomalies based on that distance.

文章提出一种分析网络异常的通用方法，该方法运用主成分分析手段将高维空间划分为对应正常和异常网络行为的子空间，并将流量向量影射在正常子空间中，使用基于距离的度量来检测宏观网络流量异常事件。

The method divides the traffic matrix into normal subspace and anomalous subspace, maps the traffic vector into normal subspace, gets the distance from detected vector to average normal vector, and detects anomalies based on that distance.

文章提出一种分析网络异常的通用方法，该方法运用主成分分析手段将高维空间划分为对应正常和异常网络行为的子空间，并将流量向量影射在正常子空间中，使用基于距离的度量来检测宏观网络流量异常事件。

The CryCI gene and essential regulation elements cut from the plasmid pGF4ABC were inserted into yeast expression vector pPIC9K and plant expression vector pBI 121.1, so we got the secretive yeast expression plasmid pPIC9KBC and plant high-efficiency expression plasmid pGBIF4ABC, Fifty-two His+Muts transformants were obtained after the expression vector pPIC9KBC was introduced into Pichia pasoris, KM7I strain, by electroporation.

将pGF4ABC上的融合杀虫基因CryCI分别克隆到酵母表达载体pPIC9K和植物表达载体pBI121.1上，构建成融合杀虫基因的分泌型酵母表达载体pPIC9KBC和高效植物表达载体pGBIF4ABC。

It points out that under the hard-switching PWM pattern, the movement speed of flux linkage is adjusted by zero space voltage vector, but when soft-switching PWM pattern is used, effect time of space voltage vector vary greatly, sometimes even no zero space voltage vector exist.

指出在硬开关PWM模式下，磁链的运动速度靠零空间电压矢量调节；而在软开关PWM模式下，空间电压矢量的作用时间发生了很大变化，有时甚至没有零空间电压矢量。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

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