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It showed the correctness of the criteria of roundness error and relationship between the minimum zone circle, minimum circumscribed circle and maximum inscribed circle and the effectiveness of the methods for evaluation of roundness error.

也验证了圆度误差判别准则及最小区域圆、最小外接圆和最大内接圆特征点间的相互关系的准确性和误差评定方法的有效性。

The criteria of the minimum zone circle method, minimum circumscribed circle method and maximum inscribed circle method were researched and the criterion of obtuse triangle was proposed.

研究了圆度误差评定中最小区域圆法、最小外接圆法和最大内接圆法的判别准则,提出了具有最小误差的外接圆和内接圆的钝角三角形准则,使圆度误差的判别准则得到完善。

Based on the criteria of roundness error, the definition of the circumscribed circle and inscribed circle with the least roundness error was given. The solution to the circumscribed circle and inscribed circle with the least roundness error was proposed when they met with the criterion of obtuse triangle.

根据圆度误差评定的判别准则,给出具有最小误差的外接圆和内接圆的定义,并提出了解决具有最小误差的外接圆和内接圆满足钝角三角形准则时的误差评定方法。

Based on the mechanical analysis of rotary pan, the axisymmetrical model and non-axisymmetrical one were proposed respectively by simplifying the effect of lacing wires on pan into ring distribution uniform load or force and were solved according to the flexure theory of thin plate with small deflection.

在分析工作状态下转子圆盘受力的基础上,将拉筋对圆盘的作用分别简化成环形均布载荷和集中载荷,建立承压圆盘的轴对称模型和非轴对称模型,并根据薄板的小挠度弯曲理论,对力学模型进行求解。

In this thesis, terahertz transmission properties through three kinds of simple sub-wavelength metallic structures, including single sub-wavelength metallic circular hole, single sub-wavelength metallic slit and double sub-wavelength metallic slits, are experimentally investigated in the far field by using our own THz time-domain spectroscopy system and are theoretically analyzed. Conclusions are obtained as follows:(1) a single sub-wavelength metallic circular hole exhibits the same terahertz transmission properties as that of round metallic waveguide, which are influenced by the diameter of circular hole and the thickness of metal foil.

本文利用本实验室搭建的太赫兹时域光谱系统研究了太赫兹波段金属亚波长结构的透射特性,其中对三类金属亚波长简单结构即单个金属亚波长圆孔、单个金属亚波长狭缝和金属亚波长双缝的太赫兹透射现象进行了远场探测以及理论上的分析,得到了以下一些成果:(1)太赫兹波通过单个金属亚波长圆孔的传播现象与圆形金属波导具有相同的规律,其特性受到圆孔直径和金属箔厚度的影响。

An analysis revealed very significant positive correlation between trophozoite area and nucleus area (r=0.54, P .01), trophozoite volume and nucleus volume(r=0.47, P .01), and negative correlation between trophozoite area and trophozoite roundness (r=-0.29, P .01), no significant correlation between nucleus roundness and trophozoite roundness.

相关分析显示滋养体与核的面积(r=0 。5 4 ,P 。0 1)、滋养体与核体积(r=0 。4 7,P 。0 1)相关性有显著性意义,滋养体面积和核圆度呈负相关(r=- 0 。2 9,P 。0 1),滋养体圆度和核圆度之间无相关性。

By roundness image processing,the characteristic information of round parts can be got.Thus we can precisely and swifty test the roundness error and correlative geometry dimension and shape error of the parts.Through the comparison to the standard objects or design demands,we can estimate whether the part is qualified

对采集到的零件图片进行图像处理,得到零件的圆度特征信息,从而精确快速的检测出零件圆度误差和相关几何尺寸和形位公差,通过与标准件或设计要求的比较,判断出被测零件的圆度是否合格。

Our company specializes in the creation of the valve handwheel, handle, bevel gear, worm gear boxes, valve stem, nuts and various valve accessories enterprise can also be in accordance with customer requirements, order a variety of different specifications of hexagonal, square heart, round hole Size of hand wheel of the Company since its inception has been committed to product innovation, and constantly develop new products, our customer-centered and quality as its core business philosophy, in order for the company's products to better serve the society serve the public, the company's strict production management system, continuous introduction of new technologies, new materials, new techniques, and is equipped with a set of complete machining equipment and sophisticated testing equipment to create the link axis hand wheel, hand wheel Fang, keyway hand round, hexagonal hand wheel, lever ball valve, butterfly valve handle, valve bevel gear, worm gear box, is the Quartet SL101-F type, cone Quartet SL101-Z type, is the Quartet SL104-F type, flower type is SL105 Quartet , cone Quartet SL-104-Z-type, hexagonal SL104-L-type, hexagonal SL101-L type, round type keyway SL101, SL104 keyway circular type, is the six-party type SL102, SL101-J-type keyway, keyway SL102-J-type , SL103-J-type keyway, keyway SB101-J-type, the second generation of new hand wheel, BA series bevel gear, WQDX3, QDX3, QDS3-S, QDX3-G, XQDX3, QDX3-CF, FQDX3, SQDX3 part series back to transformation of the valve device manually, QDX3-C, QDX3-D series valve electric part of the transition back to devices, valve cover series, bearing gland series, the electric-type bearing cap, with a round open cap, sealing the Block series, hand - hard hat round shields hexagonal locking nut series of the Company follow the "survive on quality, reputation and development" business philosophy and the integrity, service, communicate, progress, development.

本公司自创建以来,就一直致力于产品的技术创新,不断开发新产品,秉承以客户为中心,以质量为核心的经营理念,为使公司的产品能更好的服务于社会、服务于大众,公司实行严格的生产管理制度,不断采用新技术,新材料,新工艺,并配有一整套完善的机械加工设备和检测设备制造出精良的连轴手轮,方心手轮,键槽手轮,六角手轮,球阀手柄,蝶阀手柄,阀门伞齿轮,蜗轮箱,正四方SL101-F型,锥四方SL101-Z型,正四方SL104-F型,正四方SL105花型,锥四方SL-104-Z型,六角SL104-L型,六角SL101-L型,圆型键槽SL101型,圆型键槽SL104型,正六方SL102型,键槽SL101-J型,键槽SL102-J型,键槽SL103-J型,键槽SB101-J型,第二代新型手轮,BA系列伞齿轮,WQDX3,QDX3,QDS3-S,QDX3-G,XQDX3,QDX3-CF ,FQDX3,SQDX3系列部份回转型阀门手动装置,QDX3-C,QDX3-D系列部份回转型阀门电动装置,阀瓣盖系列,轴承压盖系列,电动型轴承压盖,圆开帽,上密封座系列,手轮护罩拼帽系列六角锁紧螺母系列本公司遵循&以质量求生存,以信誉求发展&的经营理念和诚信,服务,交流,进步,开拓。

At the same time, the electric potential and the electric intensity at the central axes and in the distance area of the charged ring are discussed.

本文中我们运用椭圆积分法计算出了均匀带电圆环空间电位和电场分布,使我们对其产生的电位和电场有一个全面了解。1均匀带电圆环的电位均匀带电q的圆环半径为b,以环心。

With minimizing the move distance as the optimization objective, the circular curve radius and circle center coordinate were then optimized, the transition curve length, the move distance of each measured points, the mileages and the coordinates of the feature points and so on were further computed.

首先利用坐标法计算各测点的坐标,再计算正矢,然后根据正矢的变化规律选定圆曲线上的测点,用最小二乘法拟合出既有线圆曲线的半径和圆心坐标,并以拨正量最小为优化目标,优化圆曲线半径及圆心,进而计算出缓和曲线的长度、各测点的拨正量、特征点的里程和坐标等。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

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关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。