基本类

The system is designed according to the mechanism of CAD Standard Part Graphies Files. SQL Server 2000 is selected as the host and construct the database of part liabrary due to characteristic parameter. STEP, viz. ISO 10303, is issued by international standardization organization, and here ,this paper gives the definition of product information model oriented part41 and part44 in STEP and six basic definienses which describe the product information to ensure the information in the product information model correct and shareable . This paper also presents method of creating and extracting product information on engineering draught and product data exchange and integration between CAD system and database manager system.

论文中采用&CAD标准件图形文件机制&，用SQL Server2000数据库建立了零件的特征参数数据库，完成了零件库的特性参数库建库工作；依据国际标准化组织的STEP标准即ISO 10303中的Part41，Part44两部分内容以及STEP标准中描述产品信息的六个基本的类库定义，提出了一种产品信息模型，保证了产品信息模型中信息的正确性和共享性，实现了工程图样中产品管理信息的建立和提取以及数据库系统与图形文件中的管理信息交换与集成。

"Chemical explosive s are of two types: detonating explosive s (e.g., TNT, dynamite) have extremely rapid decomposition and development of high pressure; deflagrating explosive s (e.g., black powder, smokeless powder) merely burn quickly and produce relatively low pressure."

化学爆炸物有两类基本的炸药，一为爆轰炸药(如三硝基甲苯〔TNT〕和黄色炸药)，能极快分解，造成高压。二为爆燃炸药能很快燃烧，但产生的压力较低。

"Chemical explosives are of two types: detonating explosives (e.g., TNT, dynamite) have extremely rapid decomposition and development of high pressure; deflagrating explosives (e.g., black powder, smokeless powder) merely burn quickly and produce relatively low pressure."

化学爆炸物有两类基本的炸药，一为爆轰炸药(如三硝基甲苯〔TNT〕和黄色炸药)，能极快分解，造成高压。二为爆燃炸药能很快燃烧，但产生的压力较低。

The most politically contested issues, such as bulldozing slums to make way for the contestants' village, have largely been settled.

推平贫民窟建造运动员村这类政治上争议最大的问题早已基本得到了解决。

The beauty of keeping reptiles is that once you've set up their caging requirements and learned a few basic skills, there are many species that can be safely and efficiently kept within the home and should live out a full, healthy life.

美丽的饲养爬虫类动物的是，一旦您设置了他们的caging的要求和学到了一些基本的技能，有很多物种可以安全和有效地维持家庭生活，并应制订一套全面，健康的生活。

They encompass the following broad bands of biological roles:(1) basic structural units of cellular membranes and cytologically distinct subcellular bodies such as chloroplasts and mitochondria;(2) compartmentalizing units for metabolically active proteins localized in membranes;(3) a store of chemical energy and carbon skeletons; and (4) primary transport systems of nonpolar material through biological fluids.

这类物质无论在功能上还是结构上都有明显不同，它们具有以下广泛的生物学作用。1。细胞膜和细胞中亚细胞器，如叶绿体和线粒体的基本结构单元。2。定位于细胞膜上具有代谢活性蛋白质的划分单位。3。化学能和碳骨架的储藏物质。4。以生物流的形式使细胞内非极性物质得以运输。

2The papre decompounds the complex motion of the robot into two types of basic motions, that is self-discipline bionic worming and pose adjustment. Thus the arithmetics of the pose and orientation of the robot are unified, which provides advantage for mix control mode and simple kinematics analyse.

将拱泥机器人的复杂运动分解为仿生自律蠕动和姿态调整两类基本运动，统一了机器人自身姿态合成与定位算法，为混合控制模式的实现和机器人运动学分析及仿真模型的建立提供了便利条件。

In proof of this interpretation, examples are quoted from scripture, as:"The seven kine are seven years"(Genesis 41:26) or:"Sara and Agar are the two covenants"(Galatians 4:24), Waiving the question whether the verb "to be" of itself can ever be used as the "copula in a figurative relation" or express the "relation of identity in a metaphorical connection", which most logicians deny, the fundamental principles of logic firmly establish this truth, that all propositions may be divided into two great categories, of which the first and most comprehensive denominates a thing as it is in itself (eg "Man is a rational being"), whereas the second designates a thing according as it is used as a sign of something else (eg,"This picture is my father").

在证明这一点的解释，例如引述经文为：&七凯恩斯是七年&（创41：26 ），或者：&萨拉和琼脂是两个人权公约&（加拉太4时24分），免收问题是否动词&，以&的本身都不能被利用为& Copula的一种形象化的关系&或表述&的关系，身份，在一个隐喻性联系&，其中最logicians否认的，基本原则的逻辑，牢固树立了这个真理，即所有的主张，可分为两个大类，其中第一和最全面的denominates一件事情，因为这是在自己（如：&人是一种理性的&），而第二指定事据，因为它是用来作为标志的东西，别人（例如，&这张照片是我爸爸&）。

It is theoretically possible that we might succeed in haling the proportion of ery poor people in the world by 2015, simply because China had succeeded in lifting almost all its people out of that category, een if most countries in Africa still had the same proportion.

即使非洲许多国家的问题依然如旧，但在理论上只要中国基本消除了最贫困人口，到2015年我们就能实现把全世界这类人口减少一半的目标。

Hexagon These are the base units , you can modify this class directly or use inheritaance to create your game hexes.

六角这些是基本单位，您可以修改这个类直接或使用继承来创建你的游戏hexes。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。