查询词典 double-curved surface

On the basis of OCM, segmentation based on curvature radium is presented in the paper, in which curvature radium is calculated using parametric-surface fitting, and detecting edge points is realized from orthogonal direction, which ensure the integrality of edge points. Since the data is organized by cross-line in OCM, a new arithmetic, Double-direction Angle Difference arithmetic, is brought forward, which can pick up edge points more quickly.

物体的表面一般由多个曲面相交组成，要建立完整的几何模型，需要对测量数据进行区域分割——区分不同曲面的数据，现有的区域分割大多是对单视图的图像式测量数据进行的，但完整的CAD模型需要联合多个视图产生，本文在上面提出的三维正交模型的基础上，提出了三种区域分割方法：第一种方法是基于曲率半径的数据分区方法，通过二次参数曲面拟合计算局部曲率半径，从正交的多个方向进行检测，保证了边点提取的完整性。

Rays of yellow brighten an overcast day as Pacific double-saddle butterfly fish swim near water's surface in French Polynesia's Tuamotu archipelago.

黄色的射线，照亮一个阴暗的天气作为太平洋双鞍蝴蝶鱼游泳靠近水的表面在法属波利尼西亚的土阿莫土群岛。

Photo Gallery: Underwater Creatures Rays of yellow brighten an overcast day as Pacific double-saddle butterfly fish swim near water's surface in French Polynesia's Tuamotu archipelago.

黄色的射线，照亮一个阴暗的天气作为太平洋双鞍蝴蝶鱼游泳靠近水的表面在法属波利尼西亚的土阿莫土群岛。

The ceramal layer on the surface of mild steel was cladded by using a double-layer precoating method.

采用双层预涂覆方法在低碳钢表面激光熔覆金属陶瓷涂层。

Based on differential geometry and spatial engaging theory,a set of formula of conical surface double enveloping worm gearing had been derived and its figures,position and distribution had been depicted by graphs.

以微分几何与空间啮合理论为基础，推导了锥面二次包络圆柱蜗杆传动两次包络过程中的啮合方程和主要啮合性能指标方程，以图直观的表示出其形状、位置和分布状况。

The paper simply introduced the basic principle of surface nuclear magnetic resonance and computed the numerical integral of nuclear magnetic resonance kernel function which contained double Bessel functions using the method of Gauss quadrature and continued fraction expansion, and then discussed influence of conductivity to nuclear magnetic resonance′s signal.

简要介绍了地面核磁共振找水的正演理论方法，采用高斯求积并结合连分式展开的方法对核磁共振核函数中包含双重贝塞尔函数的积分核进行了数值积分，进而计算出精度较高的核函数值，在此基础之上，讨论了导电性对地面核磁共振信号的影响。

Double glow plasma surface alloying technique ; surface W ; Mo ; Co alloying ; pure iron ; diffusion behavior

双层辉光离子渗金属技术； W、Mo、Co多元共渗；工业纯铁；扩散行为

The crack meter leverages double cantilever and contingency principle to accurately measure the size of the opening and closing and surface dynamitic strain of existing cracks on structure and components surface under load.

为此利用双悬臂梁和应变原理研制成功一种新型裂缝计，可准确测量结构、构件表面已有裂缝在荷载作用下裂缝开合大小或表面动态应变。

The STM image is shown the surface structure of the single atomic height step for miscut angle of 0.5°,and the surface structure of the double atomic height step for miscut angle of 4.5°.

观察到错切角为0.5°时STM像为单原子高度台阶表面结构，错切角为4.5°时STM像为双原子高度台阶结构。

Our company is equipped with the state-of-the-art manufacturing facilities and processing technologies introduced from Taiwan and Korea.At present,we are available with two sets of PVC calendaring production lines,two wet production lines, two paperpressing production lines and two double-head rollergrinders, as well as advanced embossing machines,natural luster finishing machines, polishing machines, transferring machi-nes and multipurpose surface finishing machines for the postal processing and surface treatment. These facilities and equipment are in sufficient capacity to produceand develop a wide range of artificial leathers and synthetic leathers.

引进台湾，韩国先进的设备和工艺技术，目前拥有两套PVC压延设备流水线，两台湿发生产流水线，两台套干型纸生产流水线，两台双头磨皮机，在后道加工，表面处理上有先进的压纹，烫光，抛光，转印，喷涂和多用表面处理机，适应生产和开发各类人造皮革，合成皮革。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐