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Analysis of several cylindricity measurement models based on error separation technique.

基于误差分离技术的几种圆柱度测量模型分析。

A cylindricity evaluation approach based on the Particle Swarm Optimization was proposed.

提出了将粒子群优化算法用于圆柱度误差评定的设想。

The cylindricity error separation and reconstruction method proposed in this paper was systematically verified.

利用自律验证法对本文提出的圆柱度误差分离及重构方法系统地进行了实验验证。

An objective function was proposed to evaluate the minimum zone cylindricity error. The error model was optimized by genetic algorithm.

建立了圆柱度误差最小区域评定的目标函数,并利用遗传算法对目标函数进行寻优。

While the plane is measured by using the cylindricity measuring instrument and square ,the data acquisition should be done at the same time.

首先利用圆柱度仪和角尺对被测件进行测量,同时采集原始测量数据,然后利用最小二乘法实现平面度误差的评定。

The roundness and cylindricity on-line measurement system for ultra-precision machining, as well as the corresponding measurement software has been developed, which can perform the on-line measurement for the workpiece at any time.

研制了超精密车削工件圆度及圆柱度临床测试系统,及相应的测量软件包,可随时对工件进行临床测试。

Description: The technology shall be applied in finishing of thin-wall cylinder sleeve, required to reduce the geometric tolerances, including roundness tolerance, cylindricity tolerance and coaxiality tolerance.

内容说明:该技术应用在薄壁缸套的精加工方面,要求降低圆度,圆柱度,同轴度等形位公差。

Trees evergreen, monoecious; branchlets ascending, rarely pendulous, often decussately arranged, terete or 4-angled in cross section.

乔木常绿,雌雄同体;小枝上升,很少下垂,经常decussately安排,圆柱状或者四棱形的在横断面上。

Leaves several, lorate or linear, cross section semiterete or terete, solid or fistulose, base usually not narrowed into a petiole; ovules 2 to several per locule; if leaf base narrowed into a petiole or ovules 1 per locule then bulb tunic never distinctl

叶数个,带状或线形,横断面半圆柱形或圆柱状,中空的固体或,基部通常不缩小成为叶柄;胚珠2到数枚每室;如果叶基部狭窄成为叶柄或胚珠1每室那么鳞茎皮从未是distinctl 7

There are three cross-columns of different depths in the surface of the Air Pillow which are arranged flexuously.

长方形气枕表面有三条大小深浅不同的横圆柱,排列呈波浪形状。

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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

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。