放樣曲面 的英文怎麼說
中文拼音 [fàngyàngqūmiàn]
放樣曲面
英文
uv-
Abstract : in the research of internal combustion engine, recordingin - cylinder pressure and temperature is an essential technique to study the thermal cycle of internal combustion engine. the combustion analyzer developed in this study will give both the measurements at sampling points per crank angle or sampling cycle, calculate and show the real time parameters which decide the working process of internal combustion engine, such as pressure accelerating rate, indicateed mean effective pressure, cycle - to - cycle variation, heat release rate, etc. compared with the imported congeneric products, the analyzer has many advantages such as chinese interface, low price, easy operateing, convenience in maintainance and easy upgrading
文摘:為了測錄內燃機缸內的壓力及溫度，開發了一種內燃機燃燒分析儀.該分析儀由國產高速數據採集卡及自行開發的控制軟體組成.它不僅能精確設置每度曲軸轉角內采樣點的個數和採集循環數，而且在採集過程中能實時計算和表徵內燃機工作過程的壓力升高率、平均指示壓力、循環變動率、放熱率等參數.經實際使用以及與國外產品相比表明，此分析儀具有全中文界面、價格低、操作簡單、使用維護方便、功能便於擴充等優點Then a high - degree geometric continuity blending surface is obtained with transfinite interpolate method. ( e ) g3 blending surface with approximation can be constructed by lofting if geometric invariant errors are given, the surface can be converted to b - spline, nurbs form for the purpose of system aggregation
最後，為滿足曲面造型系統集成的需要，在保證曲率、曲率導數和撓率精度情況下，將上述研究結果應用於曲面放樣逼近方法，得到參數過渡曲面轉換成b樣條曲面或nurbs曲面的形式。Surveying setting - out of distorted face for right dam abutment in yushi reservoir
玉石水庫右壩頭扭曲面開挖的測量放樣In the part of 3d modeling, some theories and technologies was discussed. then, how to build 3d terrain was analysis. this dissertation presented two new methods of terrain building : lofting based on contour and random terrain building based on fractional brown motion
三維地形是虛擬環境的基本要素，本文總結了各種地形建模方法，提出了兩種地形建模方法：根據等高線地圖生成地形的「沿截面法線放樣法」和生成隨機地形的分形曲面法。Samples are prepared at 1100 and 1200 for different time from 5 minutes to 4 hours to study direct - nitridation kinetics. the thickness of the silicon nitride films is measured by single - spot thickness system produced by filmetrics co. ltd. the direct - nitridation kinetics curve is attained and the maximum thickness of the silicon nitride film is about 50nm
為研究矽片氮化動力學，在1100和1200的溫度下制備了從5分鐘到4小時的各個氮化時間的樣品，並採用了不同晶面取向的矽片和不同的矽片放置位置，用filmetrics公司生產的f20型膜厚測量儀測得各個樣品的厚度，得到了實際的氮化動力學曲線和氮化薄膜的最終膜厚約為50納米，氮氣曲線較好地符合了氣固反應類型的動力學曲線。The result, two years of r & d on, is a launch collection of six styles, each made from japanese steel, each with patent - pending and each dispensing with anything extraneous to focus on assorted new mechanisms : a flat bar with sections that open out to keep it in place once passed through the button - holes ; an s - bend that swivels to lock into a square shape ; and, most radically, a cufflink with a twist mechanism that, rather than pull the two ends of a shirt - cuff together, creates a space between them, making room for an outsized watch
經過兩年的研發，該公司的成果是發布了一個由6種款式組成的系列，每種款式都由日本鋼鐵製造，每種都將申請專利，每種都省去了無關的設計、將重點放在各式各樣的新裝置上：一塊扁鋼條，上面附有向外張開的部件，使袖扣穿過紐扣孔后就能固定住；能夠旋轉的s型彎曲，可以固定進一個正方形的外形中；更為激進的是，一款具有扭曲設計的袖扣不是將襯衫兩端連接在一起，而是在它們之間創造出一定空間，為一隻特大號手錶留出了地方。Yeah, that is it. you put one on side a, put another on side b
好，就這樣，一曲放a面，另一曲放b面The connected curve equation after spreading connected joint of taper container are derived ， the new blanking method with computer is put forward
導出了圓錐形容器接管交線在展開接管表面后的曲線方程，提出了用計算機繪制其交線，即放樣下料的新方法。The advantages, such as easily computing form - lines and accurately lofting, are offered by mathematical ship - hull surface. hull structure modeling, engineering analyzing and manufacturing are based on mathematical ship - hull surface. furthermore, hull structure designing in virtual reality environment and intelligent building depend heavily on the ship - hull surface model
船體曲面的數學描述有著很大的優越性，如放樣精確，求值（型線、肋骨線、結構線、接縫線等）方便，也是後面船體結構設計，工程分析，建造的依據，是實現智能設計、虛擬建造的先決條件。分享友人