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Using guyed tower middle line insulator string as an object, through analyzing of distance between cross arm and boom guy plumb plane, and projecting insulator string length, angle, conductor wind inclined angle, and sag to boom guy plumb plane, middle line insulator string tracking equations can be established.

以拉线塔中线绝缘子串为分析对象,通过对横担、拉线铅锤间的距离分析,再将绝缘子的串长、角度,导线风偏角、弧垂投影至拉线铅锤,在拉线铅锤建立中线绝缘子串的轨迹方程,以带电体与拉线间的距离为限制条件,从不同角度计算出第1、2、3极限风偏角,取其中的最小值为极限风偏角。

The paper puts forth that the numerical model of actual forming part is reconstructed by RE and the surface is regarded as actual trimmed surface, then grids and nodes mapping relationship between design model and actual forming part is acquired through compelling deformation simulation, and the design trimming line is dispersed into points according to a certain precision and the projective points and the coordinate values of the intersection points of projective line on the grids formed by discrete points are calculated along trimming direction, the new coordinate values of projective points and intersection points of projective line after deformation are calculated based on the mapping relationship of grids and nodes, the deformed trimming line can be acquired through fitting the points into curve.

本文提出通过逆向工程技术重构出实际冲压件的型并以此型为修边后实际冲压件的型,然后采用强制变形仿真的方法建立设计模型和实际冲压件重构模型的网格和节点映射关系。将设计修边线按一定精度离散成点,然后根据修边方向计算出各点在网格上形成的投影点和投影线交点,根据之前计算出来的网格和节点映射关系就可以计算出投影点和投影线交点在变形后的新坐标,将其拟合成曲线就可以得到变形后修边线的形状。

" Advanced environment-friendly interior wall putty powder are my own Division developed a new type of interior wall surface clean decorative materials, has good bond strength, after wiping noodle noodle not hollowing-based, non-cracking, non - swap powder, Construction Convenience.

"丽邦"高级环保型内墙腻子粉是我司自行研制开发的一种新型内墙抹装饰材料,具有很好的粘结强度,抹后的基不空鼓、不开裂、不掉粉、施工方便。

The result of the calculation indicates that there are a rather sectional rigidities of arch rib , cross beam and radio of width-long ,the dead load of arch will much bigger than the vehicle load and wind load in operation, and the in-plane stability will larger than the out-plane stability and the in-plane stability is the main factor controlling of design.

通过有限元理论计算结果表明,当采用截刚度较大的拱肋、风撑以及较大的宽跨比时,拱桥结构的自重将远远大于运营时的车辆荷载和风荷载,拱桥外稳定高于内稳定,拱桥的内稳定将控制设计。

Based on the above results, the problems of the electromagnetic interaction between a perfect conducting plate and 1-D/2-D conducting slightly random rough surface and the problems of the electromagnetic interaction between a dielectric spherical particle and dielectric slightly random rough surface are investigated. By using the reciprocity theorem, Small Perturbation Method and Physical Optics approximation, the solution for the composite scattering field from the composite target is derived and evaluated, and the numerical results are discussed and analyzed.

在此基础上,用互易性原理分别研究了一维、二维导体微粗糙与其上方金属导体平板目标的复合电磁散射及介质粗糙与其上方球形粒子的复合电磁散射,结合互易性原理和粗糙散射微扰法及物理光学近似导出了复合散射场的计算公式并进行了数值计算,对计算结果进行了讨论和分析。

On the basis of Earth surface space using reference ellipsoid as height basis, map space using Gauss-Kruger projection plane as height basis, a viewpoint is proposed that map projection actually establishes corresponding relationship between the height bases of two different spaces above. From the viewpoint of projection and visible representation, the relationships among earth surface space, RS imagery space and map space are analyzed; the differences among different representations of earth surface space are identified theoretically; virtual reality is applied to the representation of land surface space, and a prototype of real 3D virtual reality system based on spatial information is developed. By means of digital simulation, virtual reality representation of land surface space in visual image space is realized.

在以参考椭球为高程基准表征地表空间、以高斯-克吕格地图平为高程基准表征地图空间的思想基础上,提出了地图投影实质上是建立两个空间的高程基准之间关系的观点;从投影和可视表达的角度,分析了地表空间、遥感图像空间、地图空间之间的关系,从理论上区分了对地表空间的不同表达方式之间存在的差别;将虚拟现实技术应用于地表空间的表达,研制了空间信息三维虚拟现实系统原型,利用数字模拟技术在视像空间实现了对地表空间的真三维虚拟现实表达。

The mean velocity distributions in turbulent boundary layers of smooth surface and two different riblet surfaces are measured with IFA300 constant-temperature anemometer in low-speed wind tunnel to validate the full development of turbulent boundary laye. Friction velocity and wall friction stress of turbulent boundary layer are obtained with the least-squares fitted curve of the sublayer velocity distribution based on Spalding formula, and virtual origin position of riblet surface can be acquired accurately.

在低速风洞中来流速度一定的情况下使用IFA300恒温热线风速仪测量了光滑表和两种不同尺寸的脊状表湍流边界层平均速度分布剖,并验证了试验段湍流发展的充分性;通过应用Spalding壁公式使用最小二乘法精准拟合了实验测量的边界层内层速度分布曲线,得到了湍流边界层壁摩擦速度并进一步求得湍流壁摩擦应力,较准确地计算出脊状表的虚拟原点位置,并通过与对数律公式拟合结果比较分析,证实了该方法更加准确有效。

In the currently do not have to RIP imagesetter output software and be subject to any adjustment of the output film's site density value test results we can achieve business card printing requirements, which means the current imagesetter RIP software and is in line with the parameters of the current business card printing requirements, are not required to be made of the relevant parameters are tuned, you can direct the output of a film that you want to test the value dot, and in the RIP software to convert "" gray-scale parameter is set to ensure that design business card printing suites in a color swatch dot value and imagesetters actual output of the dot matches a color swatch.

在长远不有有不差RIP输入软件和激光照排机举动任何调动的环境下,如果不差所输入胶片的实不天密度值尝试甘休能不亏到达制卡的给求时,这外明长远的RIP软件与照排机的参数是相符长远制卡给求的,不离不需给再不差一些不关的参数举动调动了,可以间接不差所输入的胶片举动网不百分比值的尝试,并在RIP软件洋举动"灰度变换"参数的撤销,以包管在安排制卡版时的各色块网不百分比值与照排机本质输入时的各色块网不百分比值分歧。

Results:ISS couldn't show the difference between single and mu ltiple maxillofacial fracture in injury severity (P>0.5),but RISS could (P <0.000 5).Conclusion:RISS is more accurate in evaluation of maxil lofacial fracture severity than ISS.Key words Jaw;Face;Injuries of maxillofacial region;Injury severity score

本文在对大量颌创伤病案回顾性研究的基础上〔2〕,重新对我院颌外科近来收治的116例颌创伤病例进行了研究,以简明损伤定级法(abbrevia ted injury scale,AIS)为蓝本〔3〕,提出一种改进计算颌部创伤严重度评分的方法(revised injury severity score,RISS)。

Cutter blade in the face of the modeling, this paper presents a basic model of ideological confrontation flank milling reasoning and mathematical algorithm: First, the establishment of the cutter edge cross-section curve and the equation ruled surface and then through the algorithm to generate cutter rake face and the flank, Bezier curve-based algorithm to generate the surface of the spiral groove cutter in order to achieve the opposite blade face milling modeling.

在立铣刀的刃的建模方,本文提出了一种基本的建模思想对立铣刀的刀进行数学推理和算法实现:首先建立立铣刀的刃口曲线及横截的方程,然后通过直纹生成算法建立立铣刀的前刀和后刀,通过基于Bezier曲线的曲生成算法建立立铣刀的螺旋槽,从而实现了对立铣刀刃的建模。

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But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。