Parallel lines are, by definition, lines on the same plane that never join.

按照定义说, 平行线是在同一平面上永不相交的线。

The definition ,basic nature, important rule and histerieal significancy of continued fraction are introduced.

介绍了连分数的含义、基本性质以及连分数的重要定理和作用。

They concentrated on better definition of the optical image.

他致力于提高该光学影像的清晰度。

The book attempts a definition of his role in world politics.

该书要阐明的是他在世界政局中的作用。

I made a definition for this word.

给这个字下了定义。

A clinic for women would, by definition, deal with pregnancy and childbirth.

根据定义，妇科诊所处理妊娠和分娩事宜。

These observations allow one to formalize the definition of reflection: a reflection is an involutive isometry of an Euclidean space whose set of fixed points is an affine subspace of codimension 1.

这些观察形式化反射的定义: 反射是欧几里得空间的对合等距同构，它的不动点集合是余度为 1 的仿射子空间。

Using our field data and the existing literature on bricolage, we advance a formal definition of entrepreneurial bricolage and induce the beginnings of a process model of bricolage and firm growth.

运用实地取得的数据和已有的关于利用现成资源的文献，展了企业利用现成资源的正式定义，并引出关于利用现成资源和企业增长的过程模型。

Aren't all membranes semi-permeable? That is, the whole point of a membrane is that it lets some things through and others not. Membranes by definition are permselective or semi-permeable barriers.

也就是说他认为所有的膜都是半透的，从定义来看就是选择透过或者半透结构。

Definition: Whole or cut, dried bark of Cinchona pubescens Vahl (Cinchona succirubra Pavon), of C. calisaya (Weddell), of C. ledgeriana (Moens ex Trimen) or of its varieties or hybrids.

本品为茜草科植物柔毛金鸡纳（鸡纳树）Cinchona pubescens Vahl (Cinchona succirubra Pavon)、白金鸡纳树C. calisaya (Weddell)、金鸡纳树C. ledgeriana (Moens ex Trimen)及其变种及杂交品种的完整或切段的干燥树皮。

Definition : A strophoid of a circle with the pole O at the centre of the circle and the fixed point P on the circumference of the circle.

在圆上的环索线，以圆心为极点，圆周上的一点为固定点，所作出的图形！

In this paper, we proved that the definition of a semilattice as a universal algebra and the definition of a semilattice as a partial ordered set are equivalent.

本文中，证明了作为泛代数的半格的定义与作为偏序集的半格的定义是等价的。

Beginning with the basic concept and definition of version, bibliology and version of piano sonata literature, the subject will be collated to the category of bibliology.

本课题从版本、版本学及钢琴文献之版本的基本概念和定义入手，将研究厘定于版本学的范畴之中。

Definition: Virgin olive oil is the fatty oil obtained by cold expression or other suitable mechanical means from the ripe drupes of Olea europaea L.

本品为自木樨科植物木樨榄（油橄榄）Olea europaea L.的成熟核果经冷榨或其它适当的机械方法得到的脂肪油。

The link step resolves interfile dependencies, such as linking a function call in one file to a function definition contained in a second file.

链接步骤解决了文件间的依赖，如将一个文件中的函数调用链接到另一个文件中的函数定义。

In this paper,we discuss definition of normal families of holomorphic function,analysis some connected conceptions,and obtain some normal rules of normal families of holomorphic function.

文章通过对全纯函数正规族定义和几个相关概念的分析,得出全纯函数正规族的几条正规定则。

This paper introduces the definition and quality reqirement of supercalendered paper and practice and exploration of SC paper production in Jilin Bailu Paper Co.

本文介绍超级压光纸(SC纸)的定义与质量要求以及白麓纸业生产超级压光纸的实践与体会。

Definition: Refined sesame oil is the fatty oil obtained from the ripe seeds of Sesamum indicum L. by expression or extraction, then refined.

本品为自胡麻科植物芝麻Sesamum indicum L.的成熟种子经压榨或提取后精炼得到。

In the teaching of Probability in senior high school lie obvious inadequacies in students' comprehension of Probability definition for Frequency and Equiprobability models.

在高中概率学习中，学生对概率的频率定义与古典概型的理解存在明显的欠缺。

It elaborates the definitions of epimer and epimerization, states the applications of epimerization in medicine and pesticide,and points out its expansive prospect .

阐述了差向异构体和差向异构化的定义。差向异构化技术在医药和农药中间体中应用广泛,前景广阔。