查询词典 vector product

The concepts of weighted α-lower product and weighted α-upper product between a relation matrix and a Boolean column vector are presented in weighted approximation space.

在加权近似空间中提出了关系矩阵和布尔列向量加权α下乘法和加权α上乘法的概念。

ChapterⅡ: Document classification method based on the decision tree and support vector machine has been given for the documents of product design knowledge in the product design and investigation programs.

第二章针对产品设计调研及产品方案形成阶段的文档类产品设计知识，提出了基于决策树和支持向量机的产品设计知识文档分类方法。

To precisely allocate the massive old Product Design Knowledge Document and construct the knowledge base of product design, the PDKD categorization method based on decision tree and Support Vector Machine was put forward.

为准确地定位大量旧的产品设计知识文档信息，构建产品设计知识库，提出了基于决策树和支持向量机的产品设计知识文档分类方法。

The dot product of the direction vector of a line and the normal vector of a plane can be used to find out whether they are parallel or intersect.

利用直线的方向向量，平面的法向量的点积可以判断直线与平面是平行还是相交。

Coli genome was amplified by using PCR method. The PCR product was cloned into PUC19-T vector and sequenced. In addition, the Mn-SOD protein expressed by pET-28a vector and purified was injected into rabbits to prepare polyclonal antibody. Western-blot was used to detect the effect of polyclonal antibody.

coli基因组中扩增Mn-SOD基因编码区，将它克隆到原核表达载体上进行大量表达和纯化，再用纯化的蛋白对新西兰大白兔进行背部多点注射，40d后取其血清，用Western-blot印迹实验测定抗体效果。

Vector method of the product scheme design is presented, which is based on the decomposition and combination of function, expressing the relations between function units and total function by vector.

为了解决这一问题，本文在研究产品功能理论方法和分析方案设计领域特点的基础上，在产品方案的获取上进行探索研究。

We take the dot product of the vector of count-weights with the vector of type-weights to compute an IR score for the document.

我们采取点的向量积数与向量的类型权重加权计算出文档的红外分。

The objectives of this study are:(1) To amplify Tb wbbL gene encoding rhamnosyl transferase bypolymerase chain reaction from the genomic DNA ofM.tuberculosis H37RV strain;(2) To clone PCR product of Tb wbbLgene into a cloning vector pMD18-T for sequencing;(3) To subcloneTb wbbL gene to an expression vector pET16b to construct pET16b-Tb wbbL; and to overexpress Tb WbbL protein in E.coli BL21(DE3)under different induction conditions;(4) To establish theco-expression system for expressing chaperons of pKJE7 plasmidand soluble Tb WbbL protein in E.coli BL21(DE3) under differentinduction conditions;(5) To test expressed WbbL protein by SDS-PAGEand Western blot methods.

本论文的目的是：(1)利用 PCR 方法从结核分枝杆菌 H37Rv 菌株的基因组DNA 中扩增出 Tb wbbL 基因；(2)将 Tb wbbL 基因克隆到pMD18-T 克隆载体中，经 DNA 序列测定证实为正确的基因；(3)将 Tb wbbL 基因亚克隆到 pET16b 表达载体中并通过改变不同的诱导条件在大肠杆菌 BL21(DE3)中表达 Tb WbbL 蛋白质；(4)建立在 BL21(DE3)大肠杆菌中共表达 Tb WbbL 蛋白质与分子伴侣的体系，优化表达条件以高效表达出可溶性 Tb WbbL蛋白质；(5)用 Western blot 方法鉴定所表达的 Tb WbbL 蛋白质为 Tb wbbL 基因产物。

It is equivalent to the vector cross-product, and returns a vector quantity only

它和向量叉积等价，并且只返回一个向量值

AIM: To construct the eukaryotic expressing vector of human cbl and test its expression in African green monkey kidney cell line COS 7. METHODS: Human cbl gene tagged with flag was amplified from pEFHAcbl plasmid by PCR. The product was cloned into pGEM T easy, sequenced and then subcloned into eukaryotic expressing vector pcDNA3.1.

以含有人全长cbl cDNA的质粒pEFHAcbl 为模板，采用PCR方法扩增cbl基因，并在其N 末端带上含24 bp的flag标签，克隆到pGEM T easy载体并测序，再亚克隆至真核表达载体pcDNA3 1，酶切鉴定正确后采用脂质体法瞬时转染COS 7细胞，Western blot检测flag cbl在细胞中的表达。

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。