查询词典 circular arc

One type of blade airfoil with high efficiency of a general axial flow fan is adopted as original airfoil, and it is shortened according to different length scale, and then joined to the exportation circular arc of the original airfoil in the opposite direction. Assuring the streamline on the surface of the blade profile after smooth operation, a new kind of double-head anti-unsymmetrical S model airfoils has been structured to be researched in this paper.

采用一种效率比较高的普通风机叶片翼型作为原始翼型，按不同长度比例缩小原始翼型，反向搭接在原始翼型的出口圆弧处，经过光滑处理，保证叶型表面的流线形后，构成本文所研究的新型双头双机翼反向S型不对称翼型。

We present a method of circular arc fragmented curve-fittingbased on least mean-square error rule in this paper.

谭勇 ，徐守时，涂嘉文提出了一种基于最小均方误差准则的圆弧分段曲线拟合方法。

Based on this algorithm, we use the circular arc as basic element to fit curve accroding to least mean-square error rule.

在该算法的基础上根据最小均方误差准则，以圆弧作为基元对曲线进行拟合。

The wing ing noise of the long-eared owl was measured,and the results indicated that the circular-arc tooth shaped non-smooth leading edge of its wing s has remarkable influence on its flight noise reduction.

长耳鸮扑翼噪声测量试验表明，其翼前缘圆弧齿状非光滑形态对其飞行降噪影响显著。

The paper studies some problems about engraving Chinese characters on sphere cavity inner surface for parallel robot,including tool path mapping method from plane to sphere cavity inner surface,circular arc interpolation and cutter-orientation real time planning algorithm etc.

研究了并联机器人在球腔内面雕刻汉字所遇到的若干问题，包括平面刀路向球腔内面刀路的映射方法、圆弧插补及刀具姿态实时规划算法等，给出了算例并用 6 HTRT并联机器人进行了验证，为并联机器人在汉字雕刻领域的实际应用奠定了基础。

Series solution for scattering of plane SH waves by a canyon of circular-arc cross section .

圆弧形凹陷地形对平面SH波散射问题的级数解答。

Milling groove machine is used in processing weaving trade in " pin plate " use privately cut machine tool, belong to the modular machine tool, this machine tool have 4 works position and 8 milling heads, can at the same time process 8 workpieces, have higher processing efficiency and processing precision, and can at the same time still realize needle groove and circular arc groove same work position, it surmounted the shortcoming of that machining process complex, processing efficiency low and process precision do not be in height of the processing of pin plate beforetime, so it have better application prospect.

铣槽机是用于加工纺织业中&针板&的专用切削机床，属于典型的组合机床，该机床具有四工位、八铣头，能同时加工八个工件，具有较高的加工效率和加工精度，同时还能实现针槽与圆弧口槽同工位一次完成，克服了以前针板加工中加工工序复杂、加工效率低、加工精度不高的缺点，有较好的应用前景。

Your lives are not circular like theirs: your lives are the bird's flight which begins and ends in stillness-- which begins and ends, in form echoing this arc from the white birch to the apple tree.

你们的生活不象它们那样是循环的：你们的生活是鸟儿飞翔在平静中开始和结束—开始和结束，以类似这弧形从白桦树至苹果树。

After the transformation design , the economy numerical control machine has the localization , the straight line inserts , inserts along the counter circular arc , function suspension ,circulation processing , male inch thread processing and so on .

设计改造后的经济型数控机床具有定位、直线插补、顺逆圆弧插补、暂停、循环加工、公英制螺纹加工等功能，且加工质量稳定可靠。

A photoresist composition including a polymer is disclosed, wherein the polymer includes at least one monomer having the formula: wherein, R1 is selected from H, linear, branched or circular alkyl with 1-20 carton atoms, linear, branched or circular alkyl with 1-20 C atom, which is perfluorinated or semi-perfluorinated; and CN; R2 is alicyclic group with 5 or more carbon atoms; X is selected from methylene, aether, ester, amide and the connecting part of the carbonate; R3 is linear or branched alkylene with one or more carbon atoms or perfluorinated or semi-perfluorinated linear or branched alkylene; R4 is selected from H, CH3, CF3, CHF2, CH2F and perfluorinated or semi-perfluorinated aliphatic group; R5 is selected from the CF3, CHF2, CH2F and perfluorinated or semi-perfluorinated substituted and unsubstituted aliphatic group; n is 1 or higher integer; OR12 is OH or at least an acid unstable group selected from the tert-alkyl carbonate, tert-alkyl ester, tert-alkyl aether, acetal and ketal.

本发明公开了一种包含一种聚合物的光刻胶组合物，该聚合物包括至少一种具有下列结构的单体：其中，R 1 选自氢、具有1～20个碳原子的线形、支化或环状烷基、半氟化或全氟化的具有1～20个碳原子的线形、支化或环状烷基、以及CN；R 2 为具有5个或更多个碳原子的脂环基团；X为选自亚甲基、醚、酯、酰胺和碳酸酯的连接部分；R 3 为具有1个或多个碳原子的线形或支化亚烷基或者半氟化或全氟化的线形或支化亚烷基；R 4 选自氢、甲基(CH 3 )、三氟甲基(CF 3 )、二氟甲基(CHF 2 )、氟代甲基(CH 2 F)、以及半氟化或全氟化的脂族基团；R 5 选自三氟甲基(CF 3 )、二氟甲基(CHF 2 )、氟代甲基(CH 2 F)、以及半氟化或全氟化的取代或未取代的脂族基团；n为1或更大的整数；OR 12 为OH或者选自叔烷基碳酸酯、叔烷基酯、叔烷基醚、缩醛和缩酮的至少一种酸不稳定基团。

The Master of Science degree program in Economics features a curriculum that is flexibl...

在经济学理学硕士学位的课程计划的特点是灵活而全面的方法，在理论和应用课程培训工作。

This module is used for constructing and visualizing 3D models.

该模块是用于建设和可视化的三维模型。