Based on the traffic flow theory and the elements of projective transform in descriptive geometry, the key to the changepoint recognition was analyzed by the complanation of dualistic linear regression.

依據(jù)交通流理論乱人伦人妻中文字幕app，結(jié)合畫法幾何中投影變換原理欧美性中文，以二元線性回歸平面化研究為例日韩一级A片在线视频免费网站，對(duì)變點(diǎn)辨識(shí)的關(guān)鍵問題進(jìn)行了分析中文在线一区。

This paper investigates the converse theorem of rectangular projection theorem in descriptive geometry,and furthermore supplements and confirms another converse theorem,If the projection of two lines intersecting vertically fo rms a rectangle on a certain projecting plane,at least one line of the two lines is parallel to the projecting plane.

通過對(duì)《畫法幾何學(xué)》中直角投影定理的逆定理的研究，得出："若垂直相交的兩直線在某一投影面上投影成直角国内自拍偷拍视频91，則該兩直線至少有一條直線平行于該投影面"的推論天天狠天天天天透在线二区。

On a stage of discussing the virtual teaching reform, a new graphics education system among the Institutions of Technology has been being built up and perfected. The author demonstrated how to evaluate the position where descriptive geometry is and what function descriptive geometry plays when it comes to the changing graphics education system. The author also discussed how to use descriptive geometry to cultivate students' thinking and design capacity.

摘 要：在探討實(shí)質(zhì)性教學(xué)改革階段，工科院校新的圖學(xué)教學(xué)體系正在不斷改進(jìn)和完善久久福利网，怎樣看待畫法幾何課程在這個(gè)體系中的位置、價(jià)值和功能www.久久@.Com，如何利用畫法幾何來培養(yǎng)學(xué)生的思維能力和設(shè)計(jì)能力欧美三级免费A片，是否認(rèn)為CAD技術(shù)與畫法幾何沒有必然聯(lián)系。

The results of this research have provided solutions to existing problems in descriptive geometry teaching.

研究之結(jié)果對(duì)投影幾何教學(xué)上所存在的問題国内免费久久久久久久久久10，提供解決的方法www.亚洲com.第四页。

Descriptive geometry is the basic of the engineering. It occupies an significant place in the whole teaching system.

工程圖學(xué)》是工程學(xué)科的基礎(chǔ)，在整個(gè)教學(xué)體系中占有重要地位久久久九九九一精品。

In addition, the question whether there is an inevitable link between CAD technology and descriptive geometry has been well answered in this paper.

針對(duì)這些在工程圖學(xué)教育改革過程中不容忽視的問題免费A片男人的天堂久久精品免费，本文對(duì)此作了必要的論證。

And Monge, continuing his researches, arrived at that general method of the application of geometry to the arts of construction which is now called descriptive geometry.

而蒙日繼續(xù)進(jìn)行研究99视频免费看，發(fā)現(xiàn)了應(yīng)用幾何學(xué)到建筑設(shè)計(jì)的一般方法一毛不卡毛片免费网址，也就是今天所謂的畫法幾何。

The Computer Aided Method on Descriptive Geometry can integrate the advantages of the two above,provides new technology in teaching descriptive geometry and drawing training.

一種意見認(rèn)為国产三级黄片视频，畫法幾何對(duì)提高學(xué)生的空間想象能力和邏輯思維能力有明顯的優(yōu)勢(shì)亚洲色婷婷啪啪一区二区，因此，應(yīng)該堅(jiān)持傳統(tǒng)的畫法幾何教學(xué)免费看在线a片，以培養(yǎng)學(xué)生的圖形識(shí)別能力和表達(dá)能力国产精品污视频。

Conventional graphic solution was often manually used to solve the problem of the spatial geometry in Descriptive Geometry and thus the result is inaccurate.

傳統(tǒng)圖解法通常采用手工繪圖解決空間幾何問題，作圖結(jié)果不精確外国黄色网址。

By taking the strategy of uniting geometry with algebra and using the method of minimal value, the relationships of intersection, parallels and perpendicular between two three dimensional spaces in four-dimensional descriptive geometry are investigated and the calculation formula of the distance between two three-dimensional spaces are given.

用形數(shù)結(jié)合的觀點(diǎn)和條件極值法免费在线看黄国产，研究了四維空間的兩三維空間的相交、平行和垂直的相互關(guān)系計(jì)算出兩平行三維空間的距離国产又黄又爽又色又湿。