本文首先给出了一道画法几何题。
The thesis first came up with a problem in projective geometry.
本文先后列出了两道画法几何题。
Two projective geometry problems are enumerated in the thesis according to priority.
并阐述了这两种作图方法的画法几何理论依据。
Finally the paper expounded on the basis of the theory of descriptive geometry about two ways.
提出了确定嵌入式三维接口线切割轨迹的画法几何方法。
A descriptive geometry method is presented to obtain the track of wire incision in processing the three dimensional cut.
画法几何学中的难点之一是求解两一般位置二次曲面的交线。
One of difficulties in descriptive geometry theories is to draw the intersection created by two general position intersecting quadric surfaces.
组合体的投影作图，一直是学生在学习画法几何和工程制图当中的一大问题。
The projection drawing of assembly has been a big headache for stu dents when learning techniques of geometry drawing and engineering drawing.
画法几何学课程的学习是逐步建立知识单元和知识结构链的知识建构的过程。
Studying the descriptive geometry course was the process of knowledge construction, which mainly included organizing knowledge unit and knowledge structure chain step by step.
由画法几何原理可知平面面积等于其正投影面积乘以该平面与投影面夹角的余弦。
According to principle of descriptive geometry, the area of plane equals projection of the plane divided by cosine between plane and projection of plane.
这项设计通过自定义的计算协议结构塑形，画法几何和应力穿孔技术被开发出来。
The design was developed through custom computational protocols of structural formfinding, descriptive geometry, and stress flowdriven porosity.
《画法几何》是工程图学的基础，也是工程专业学习其它图形表达课程的基础课。
DESCRIPTIVE GEOMETRY is the base of engineering Graphics. This course is also the foundation of other graph expression courses for the students majoring in engineering.
画法几何学是研究空间几何问题图示法和图解法的一门学他是工程制图的理论基础。
Descriptive geometry of the problem is to study geometry of space and graphic icon of the law school he was an engineering drawing of the theoretical basis.
由于在工程图学中，用正投影法解决画法几何中的某些度量和定位问题往往很不方便。
In engineering drawing, it is always inconvenient for orthographic projection to solve some measurement and orientation problems.
本文应用画法几何投影变换方法来研究瞬时螺旋运动有关构造、位移等参数之间的几何关系。
In this paper, the method of geometric transformation is used to search the relationship between the parameters of construction and the displacement of the flop.
这种搜索协议用来取代传统的画法几何学规则集，传统规则集对于这种非线性形态往往太过复杂。
Such search protocols are used to replace traditional descriptive geometry rule-sets often far too complex on such non-linear morphologies.
传统的《画法几何》教学方法凭借的是圆规、尺子和幻灯等教具，抽象、枯燥是学习者的共同感受。
Traditional Drawing Geometry teaching depends on compass, ruler and slide show etc. Learner finds it abstract.
在画法几何投影变换中，不论用换面法或旋转法，一般位置直线均需两次变换才能变成投影面垂直线。
In the transformation of descriptive geometry, no matter the method of change plane or revolve, the oblique line can be changed to a vertical line in two successive transformations.
根据钣金件的分类，利用解析画法几何的理论，对典型钣金件进行展开分析并建立它们的展开线数学模型。
Base on the theory of analytical spatial geometry and the classification of sheet metal products, the typical sheet metal's unfolding methods are analyzed and the mathematical models are built.
本文介绍用计算机求解画法几何中直线与直线、直线与平面及平面与平面的相对位置问题的方法和程序设计。
Solutions to problems in descriptive geometry such as finding the relative positions between straight lines between a straight line and a plane, and between planes are found by computerized graphics.
随着计算机图形技术在工程与教学中的推广应用，在教学实践中对如何处理画法几何部分的讲授出现了两种意见。
Along with the spreading of computer graphics in teaching and engineering, there are two opinions about how to deal with descriptive geometry.
针对《画法几何及机械制图》课程的现状和面临的形势，指出其教学设计的宗旨应该是更科学地提炼课程的精髓。
In view of the Descriptive Geometry and Mechanical Drawing and the status of the situation, that the purpose of teaching should be more scientifically designed to extract the essence of courses.
本文根据空间反演变换的原理，运用画法几何的方法，对空间曲柄滑块机构滑块行程的确定，提出了一种新的图解法。
Based on the principle of the spatial inversion, this paper proposes a new method of determining the stroke of the slide block of the spatial slider-crank mechanism by way of descriptive geometry.
求解断层两盘相对运动力和总断距等的方法，美国有毕令斯的画法几何，前苏联有莫尔恰诺夫和瓦依涅尔曼的图解分析法。
As to the method of calculating the relative movement force and total fault displacement of two walls of a fault, there are the method of descriptive geometry and the method of diagram analysis.
随着计算机图形技术在工程与教学中的推广应用，在教学实践中，如何处理画法几何部分的讲授，目前出现了两种不同意见。
Along with the spreading of computer graphics in teaching and engineering, there are two opinions about dealing with descriptive geometry.
它不仅对解决有关旋转抛物面交线的作图问题提供了很大的方便，同时还能解决一些用画法几何的一般作图法所不能解决的作图问题。
This new method not only is convenient to solve the graphy of intersecting curve of paraboloid of revolution, but also can solve some graphic problems which can not be …
它不仅对解决有关旋转抛物面交线的作图问题提供了很大的方便，同时还能解决一些用画法几何的一般作图法所不能解决的作图问题。
This new method not only is convenient to solve the graphy of intersecting curve of paraboloid of revolution, but also can solve some graphic problems which can not be …
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