图样

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。

Purpose of research work is realized by three main program module. The drafting aided tool on engineering draught is base on ActiveX Automation to develop the AutoCAD 2000. This module not only can enhance efficiency in plotting, but also offer base of creating and extracting information for the others.

课题分三个主程序模块完成，工程图样设绘辅助工具模块采用ActiveX Automation技术，对AutoCAD 2000软件平台二次开发，不但可以大大提高绘图效率，更重要的是为以后两个模块提供进行信息的建立与提取的基础。

"Exposed diagonal bracing usually occurs at building corners, with the second story often sporting a picturesque overhang; this cantilevered construction partially counterbalances the load carried by the spanning portions of the beam s."

将包围式的对角结构用在建筑角落，第二层通常有悬挂的图样，同横梁上的复杂结构相对应。

"Exposed diagonal bracing usually occurs at building corners, with the second story often sporting a picturesque overhang; this cantilevered construction partially counterbalances the load carried by the spanning portion s of the beams."

将包围式的对角结构用在建筑角落，第二层通常有悬挂的图样，同横梁上的复杂结构相对应。

These diffracted beams then interfere with one another to produce the final pattern.

然后这些衍射光束彼此产生干涉而得到最终的图样。

This year he has duelled pianos with Herbie Hancock at the Grammys, and has worked with Adidas to make a training shoe that has his name in Chinese written on the side, and a piano pedal graphic on the insole.

今年，他在格莱美上与Herbie Hancock表演了双人钢琴，还与Adidas合作推出了一款运动鞋，在鞋子上有他的中文签名，在鞋垫上有钢琴踏板的图样。

By observing state sets with hamming distance of 1, we generate state patterns.

再藉由观察汉明距离为1之状态组合，我们就可以产生状态图样。

The theory and method is researched in this course for protracting mechanical engineering drawing with projection and seeking the space geometry problem. It is a compulsory technology foundation course for engineering undergraduate student , and also is the advance class of computer plotting base.

本课程是一门研究用投影法绘制机械工程图样和求解空间几何问题的理论和方法的课程，是工程类本科生的必修的技术基础课程，是《计算机绘图基础》的先修课。

This paper studies that tolerances accumulation effect is differet for sign formal of different dimension applying to tolerance on degree of position and dimension for axis of limiting holes group,and quantizes tolerance ranges of tolerance on degree of position and dimension for axis of controlling hole group.

研究了位置度公差和尺寸公差在限制孔组轴线中因采用不同图样标注形式而导致公差累加效果的不同，量化了位置度公差与尺寸公差在控制孔组轴线中公差带的大小。

A border of bears was stenciled just below the ceiling; she had done that too.

沿着天花板的正下方有一圈熊宝宝的图样，这也是她的杰作。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。