查询词典 metrically convex subset

At the same time, the essential motion in the gear grinding process and the structure of gear grinding CNC has been discussed. This method could not only applied to outer noncircular gear with all convex pitch line but also applied to outer noncircular gear with partial concave pitch line and inner noncircular gear.

把成形砂轮看作插齿刀的一个刀齿，就可以利用非圆齿轮插齿加工过程中齿廓成形原理，推导出非圆齿轮齿廓的成形砂轮展成磨削方法，同时讨论了按这一原理磨齿时需要的运动及数控机床结构。

The paper presents an efficient approximate algorithm for Convex Hull of very large planar point set.

提出了一种计算海量平面点集凸壳的快速近似算法——点集坐标旋转法。

Comparison of much experiment data shows that the algorithm is very efficient for calculating convex hull of planar massive scattered point set, and for the point set of 107 level, its execution time on a 2.00 GHz personal computer is only three to four seconds.

通过大量实验数据对比说明，算法对求平面海量散乱点集的凸壳非常有效，点集为107数量级的执行时间在主频为2.00 GHz计算机上仅为

A plane with a flexible face that can plane concave or convex surfaces.

有可以刨凹面或凸面的曲面的刨子。

Over the years the company committed to the mill left the field of research and production equipment, production of the ZP Automatic grinding parabolic polished unit is the professional Western-style stainless steel tableware unit, 13 from Taiwan's single five models, namely throwing pieces of the mill was processing Plane, convex and concave corner of the surface, to be completed from the sand to rough play, throwing all the fine process.

公司多年来致力于抛磨领域的设备研究与制作，生产的ZP系列自动抛光机组是抛磨西式不锈钢餐具的专业机组，由五种机型十三台单机组成，分别抛磨被加工件的平面、凸面、凹面转角、曲面部分，可以完成从打砂到粗、精抛的全部工艺过程。

Utricles convex abaxially, plane or slightly concave adaxially; rostra 1/8-1/5 length of kernel; seed adherent to pericarp; leaves and bracts acute but not acicular at apex.

胞果凸背面，正面的平面或者稍凹；喙1/8-1/5段珠心；种子附着于果皮；叶和苞片锐尖但不是针状的在先端。 16 Corispermum 虫实属

Fruit a utricle, compressed, oblong to orbicular in outline, abaxially convex, adaxially plane or slightly concave, margin usually winged, entire or erose, plane or crisped, apex emarginate or rounded to acute, beaked; beak with a 2-fid tip formed from style bases; pericarp adnate to seed.

果一胞果，压扁，长圆形到圆形轮廓，背面凸，凹的平面或稍的正面，具喙由花柱基部的具一2裂的端部；果皮贴生于种子。

The outer surface of the roller with its axis line in the plane as the internal convex arc.

滚子的外表面在包含其轴心线的平面为内凸弧形。

The image properties of plane convex SML are studied by using maxtrix optics method.

用矩阵光学方法研究平凸自聚焦透镜的成像特性。

The system consists of a multi-reflection spherical cavity and is suitable for different kinds of specimen,such as concave mirrors,convex mirrors and plane mirrors.

通过积分球和补偿电路，大大地降低了对机械部件的加工要求和激光强度不稳给测量带来的影响。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。