查询词典 geometric drawing

The mathematical relationships among mixed layer thickness, ore recovery and waste dilution against drawpoint spacing, volume per drawing, cut-off waste dilution and level interval are studied in details. It shows that the contact face between ore and waste as a ideal interface is incorrect during drawing.

以二次回归正交放矿计算机仿真实验为研究手段，以单一采场放矿为研究对象，详细地阐明了混杂层厚度、矿石回贫指标与漏斗间距、一份放出量、截止废石混入率及阶段高度之间的数学关系；研究指出：在放矿过程中，将崩落矿岩接触带视为一理想界面是不正确的。

Numerical simulation of drawing process of the part has been done by using the FEM. Ultimately the reasonable die surface fo the process has been gaied which is applied in manufacture of the die through the adjustment and amendment of the drawing surfact based the simulation result, hence a guidance to the design of th elative parts.

并运用有限元技术对其成形过程进行数值模拟，根据模拟结果对拉延型面进行调整、修改，最终得到合理的模具型面用于模具的加工制造，并对同类零件的设计起到一定的指导作用。

From the second half of February, the campaign that Hunanese tour Hunan will be launched in a full swing via the media in forms of quizzes and lucky drawing; from the second half of April, Hunan Provincial Tourism Bureau will carry out large on-the-spot lucky drawing activities, winners will be granted tickets of above-3 star scenic areas of Hunan for free.

从2月下旬开始，&湘景·湘游—湖南人游湖南&活动将通过媒体，采取湖南旅游知识问答、抽奖的方式全面铺开；4月下旬，省旅游局将举办大型现场抽奖活动，获奖者可免费获得全省3A级以上景区的旅游门票。

Analyzing the process in the paper, the hydromechanics model of the hydromechanical deep drawing is built up, and the method on the numerical simulation of the hydromechanical deep drawing is put forward, which is an effective approach to the numerical simulation.

本文通过对筒形件充液拉深工艺的分析，建立了接近实际的充液拉深流体力学模型。结合有限元数值模拟技术，提出了充液拉深流体压力行为在数值模拟分析中的实现方法，为充液拉深有限元数值模拟提供有效途径。

The scientific and correct simplification on drawing and dimensioning in the engineering drawing will have hoth regularity and flexibility and will be brief and imaginal.

在工程图上对有关形体、结构和要素的作图与标注，进行科学、合理的简化，将给设计和绘图带来很大的方便和效益。

The large banded structures would lead to break during drawing.The intermidiate ones would result in extensible crack but not result in break during drawing.The small ones could exist inside the wire in the form of incontinuous particulates,resulting in a decrease of the p...

粗大的带状组织将直接导致拉丝断裂；稍小一点的带状组织不会引起拉丝断裂，但在钢丝内部存在着明显的非稳态扩展裂纹，是不安全的；细小的带状组织不会引起拉丝断裂，最终将以断续的点状形态存在于成品钢丝中，但对其安全性存在重大隐患。

The large banded structures would lead to break during drawing. The intermidiate ones would result in extensible crack but not result in break during drawing. The small ones could exist inside the wire in the form of incontinuous particulates, resulting in a decrease of the performance of wire.

粗大的带状组织将直接导致拉丝断裂；稍小一点的带状组织不会引起拉丝断裂，但在钢丝内部存在着明显的非稳态扩展裂纹，是不安全的；细小的带状组织不会引起拉丝断裂，最终将以断续的点状形态存在于成品钢丝中，但对其安全性存在重大隐患。

The fracture reasons of high strength PC steel wire are analyzed, it's considered that center segregation, central cavitation, poriness and inclusion are the metallurgical reasons which lead to the facture of PC steel wire and in the rolling process, differential coping quality, microcrack caused by surface defect, abnormal microstructure caused by burnt and improper cooling velocity, the ears on the head of the wire, overlapping of the wire rod itself are the main reasons which lead to the facture of PC steel wire. At the same time, inappropriate pickling, differential phosphorization quality, the bad heat treatment quality, the generation of crack in the improper drawing and transverse crack caused by abnormal laying of the drawing die are also the reasons of the cracking of PC wire.

对高强度PC钢丝断裂原因进行了分析，认为连铸坯的中心偏析、中心缩孔、疏松和夹杂是导致PC钢丝断裂的冶金原因；轧制过程中，较差的修磨质量、表面缺陷导致的微裂纹，过烧以及不适当的冷却速度导致的非正常显微组织，盘条头部的耳子、盘条本身折叠是导致PC钢丝断裂的主要原因；同时，不恰当的酸洗、较差的磷化及热处理质量、不适当拉丝裂纹的产生、拉拔模具安放不正导致的横裂也是PC钢丝断裂的原因。

The paper describes how to raise the service efficiency of 6502SYS electric interlocking design software based on the relevant improvements made for protrudent problems with 6502SYS electric interlocking design software under DOS operating system, and introduces the graphics generation of drawing script by using VB macro of Microsoft Excel and AutoCAD 2004 drawing software.

本文针对在DOS操作系统下的6502SYS电气集中设计软件在一些方面存在的突出问题，做出了相应的改进，论述了如何提高该软件的使用效率，并介绍了使用&Excel电子表格软件&中的VB宏的方法和利用&AutoCAD2004制图软件&解决绘图脚本的图形生成等问题。

The shape formed by projection of correlation line of rotative surface on which two axises Intersect by meahs of analytical method is discussed,and some related characterlstles of hyperbolic curve ,on the basis of which are given some ideas about making a drawing by correlationline projection are analysed and the actual drawing process is illustrated.

用解析法探讨了两轴线相交的回转面的相贯线投影的形状，分析了双曲线的一些相关特性，在此基础上给出了相贯线投影作图的新思路；利用实例说明了具体的作图过程。

Warden: That's a beautiful dog, but don't bring her again.

那是条漂亮的狗，但是不要再把她带来了。

You get up in the morning – no hangover!

你第二天早上起来的时候—不会宿醉！