双曲曲面，即通常所称的负曲率，因为它的表面同时向上和向下弯曲，就像一个马鞍。
The hyperbolic surface, which has so-called negative curvature because its surface curves up and down at the same time, like a saddle.
试验结果表明，该算法可有效地提高自由曲面的加工效率和表面加工质量。
The experimental results show that the proposed algorithm can improve machining efficiency and surface quality.
对圆柱正截面和量块表面的测量试验验证了该测量系统对自由曲面和金属强反射表面测量的可行性。
Through measuring cylindrical section and surface of gauge block, this system is viable to measure free-form surface and high-reflective metallic surface.
工具定位精度和工艺合理性规划是影响自由曲面表面高质量制造的主要因素。
Surface polishing is typically used for the quick fabrication of free-form surfaces. The continuous demand for better quality has led to demand in higher surface accuracy.
介绍了采用碳化铬硬质合金制作质谱计和表面分析仪器中的双曲面玻璃管的成形模具。
The present paper has described the die made by chromium car - bide for forming mass spectrometer needle and double curved surface glass tube in surface analyzing instrument.
采用曲面的表面法矢建立了毛坯的几何模型，结合扫描体代数方程，实现了加工仿真和NC代码验证算法。
Surface normal vector technique is used to setup geometry models for blanks. Combined it with s AE, we implement algorithm for NC machining simulation and Verification.
三维振动台采用振动方法完成对复杂异型曲面工件进行表面强化和抛光处理。
Vibration equipment is used to strengthen and polish workpieces with complicated strange curved surfaces in vibrating method.
为了减小抛光加工的表面粗糙度和提高效率，构建抛光工具路径并均匀覆盖于三维曲面上，曲面的定义域为任意二维凸区域。
Polishing tool paths were constructed to evenly cover a 3-d free-form surface defined within a 2-d convex domain to reduce surface roughness and improve efficiency.
螺旋桨表面和它的尾涡面离散为四边形双曲面元，每个面元上布置等强度偶极子和源汇分布。
The surface of propeller and its trailing vortex is divided into a number of small hyperboloidal quadrilateral panels with constant source sink and doublet distributions.
介绍了以反求工程为技术支撑的复杂曲面模具数控加工的基本原理和实现过程关键技术—样件表面数字化技术和曲面重构技术。
The key technology about surface digitizing and reconstruction in the mold tooling digitized manufacturing based on the reverse engineering as well as the basic theory is analyzed.
毛刷支撑表面打磨系统。该系统可以打造出高质量的曲面和侧面的打磨效果。
Flex Trim introduces its patented and international acknowledged brush sanding system, which is well know for high quality sanding of curve and profile surfaces.
地质界面模型是由煤层的顶底板插值曲面经煤层边界和断层曲面裁剪而成的，地表面模型是对原始地表数据和矿坑数据进行三角剖分得到的三角形网格。
The interpolation face of coal seams is trimmed by boundary and the closed polygons of up and down faulted blocks to form the deposit interface model. The earths surface model is founded.
基于自由曲面方程，由矩阵运算得出刃线运动包络面，对球头铣刀加工的表面形貌进行了建模和仿真。
Based on the models and the free-form surface formula, the moving envelope surface of ball-end mill is obtained by means of matrix calculating, the topography is modeled and simulated.
对圆柱正截面和量块表面的测量试验验证了该测量系统对自由曲面和金属强反射表面测量的可行性。
Through measuring cylindrical section and surface of gauge block, this system is viable to measure free-form surface and high-reflective metallic sur…
对圆柱正截面和量块表面的测量试验验证了该测量系统对自由曲面和金属强反射表面测量的可行性。
Through measuring cylindrical section and surface of gauge block, this system is viable to measure free-form surface and high-reflective metallic sur…
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