拉架

Aluminum has, sliding sash, Mingbox, hidden frame curtain wall, thermal insulation material; have applied to farm machinery, electronic electrical, culture, education, health, outreach and other aircraft industry profile Products.

有平开窗、推拉窗、明框木墙、隐框幕墙、隔热型材；还有应用于农业机械、电子电工、文教卫生、展架等行业的型材产品。

Applying the software ADAMS for dynamic simulation and Pro/E for three-dimensional design creates the mechanical system of virtual prototyping model of the 200t crawler crane. The models of the drag bar, the spring backstop, the luffer rope and the crawler in the system are established well by ADAMS/View module. The dynamic simulation of the complete mechanical system is researched at series of work condition, which occurs possibly the crawler crane boom backward tipping as the crawler crane unloads suddenly.

本文应用虚拟样机技术动力学仿真软件ADAMS，结合三维实体设计软件Pro/E构建了200t履带起重机的虚拟样机机械系统模型，并利用ADAMS/View模块完善了系统中拉板、弹簧式防后倾装置、变幅钢丝绳和履带模型：研究了履带起重机突然卸载时可能发生臂架后倾的一系列工况下，整机机械系统模型的动力学仿真。

Efficiency: 18000 / 2 hours, SL series of roller bearings Paper on the roll, with high-precision production lines and advanced detection instruments, products, dust, double row ball cage structure; ball, roller Road, within the three holes after close elections After the assembly from distribution, a rotating flexible, small friction, rotation stable, good sealing performance, durable, easy maintenance, welcome to.

效率：18000支/小时二、SL系列上罗拉轴承皮辊，拥有高精度生产流水线和先进检测手段，产品防尘、双列滚珠保持架结构；钢球、滚道、内孔三者经过严密选配后组装而成，具有旋转灵活、摩擦力小、转动平稳、密封性能好，经久耐用，维护方便，欢迎使用。

FRP pultruded profiles include many shapes of profiles, grating,plant, antenna cover, cable tray, doors and windows,sporting goods,tool handle etc. They possess the characteristics of light weight, high strength, color fresh and beautiful , colourfast ,anti-corrosion, electric insulation, easy to design, good integrated benefit etc.

拉挤玻璃钢产品：包括型材、格栅、扁条、天线罩、门窗、体育运动用品、电缆桥架、工具手柄等，具有轻质高强、颜色美观大方、不褪色、防腐蚀、绝缘、可设计性强、综合效益好等突出的特点，广泛应用于建筑工程、化工防腐、能源开采、电工绝缘、交通运输、文体娱乐等领域。

The results show that space finite analysis results are close to test ones, bottom chords suffer axial force and large in-plane bending, and the max stress is nearby each middle internode. The max stress of node crossbeams occurs in No.2 bottom flange, and that of internode crossbeams happens in ones lying in the middle of every internode. The concrete slab is in tension at the longitudinal direction, and also suffers bent at vertical loads. The degree of completely-composite model taking part in the combined actions is about 55%, while that of semi-composite model is 42%-43%. The combination of concrete slab and bottom chord increases the degree of floor system taking part in the combined actions, lightens the burden of bottom chord, and reduces out-of-plane bending of node crossbeams especially the ones near bridgehead. Stress and displacement of main truss can be evaluated by a equivalent plane rigid frame in preliminary design, and effective stiffness of bottom chords are composed of original ones and concrete slab, and the concentrated load from deck can be translated into uniform load.

研究结果表明：空间有限元分析结果与试验结果较吻合；下弦杆受到轴向拉力和较大的面内弯矩作用，各节间最大应力出现在节间中点附近；节点横梁最大应力发生在横梁2的下翼缘，节间横梁最大应力发生在位于端节间中部的小横梁上；混凝土板顺桥向整体受拉，并在竖向集中荷载作用下产生弯曲变形；全结合模型大部分节间内的桥面板参与主桁共同作用的程度为55%左右，半结合模型桥面板的参与程度为42%~43%；桥面板与下弦杆结合能够增加桥面板的参与程度，减轻下弦杆荷载，减少节点横梁尤其是靠近桥头横梁的面外弯曲；对桥梁进行初步设计时，主桁杆件的位移与内力可按照1个等效的平面刚架计算，下弦杆的等效刚度由原下弦杆截面和混凝土桥面板截面组合而成，桥面荷载可转化为均布荷载施加。

He had sometimes propelled her on warm summer evenings, an infirm widow of independent, if limited, means, in her convalescent bathchair with slow revolutions of its wheels as far as the corner of the North Circular road opposite Mr Gavin Low's place of business where she had remained for a certain time scanning through his onelensed binocular fieldglasses unrecognisable citizens on tramcars, roadster bicycles equipped with inflated pneumatic tyres, hackney carriages, tandems, private and hired landaus, dogcarts, ponytraps and brakes passing from the city to the Phoenix Park and vice versa.

135有时在温暖的夏日傍晚，布卢姆把这位多少拥有一些资产足以自立的病孀扶到康复期患者坐的轮椅上，慢慢地将她推到北环路拐角处加文。洛先生的牲畜交易场所对面。她在那儿逗留上半晌，隔着他那架单镜头双筒望远镜眺望那些难以辨认的市民们：他们搭乘电车、气胎打得鼓鼓的自行车、出租马车、双驾马车、自家用或租来的四轮马车、单马拉的双轮马车、轻便小马车和大型四轮游览马车，在市区与凤凰公园之间穿梭着。

Air china is using ppg coatings for the three 2008 olympics aircraft and china eastern plans to use ppg coatings for its 2010 world expo aircraft. in addition, ppg provides industrial coatings to various companies including haier, nokia, motorola, whirlpool and dell. ppg architectural coatings are widely used in many well-known structures including those in tian anmen square and the flag post, beijing oriental plaza, beijing international exhibition center, beijing international airport, the shanghai jinmao building, shanghai pudong international airport, shanghai oriental pearl tower, guangzhou baiyun international airport, tianjin jinhuang building and taida building.

航空涂料主要提供给波音、国航、南航，东航和深航等，值得一提的是，国航3架用于2008北京奥运以及东航用于2010世博会的形象飞机，全部选用了ppg的涂料。ppg的工业涂料提供给海尔、诺基亚、摩托罗拉、戴尔计算机以及惠尔普等制造商。ppg制造的建筑涂料也在中国广泛使用，天安门城楼上的字及旗杆、北京首都机场、北京东方广场、北京国际展览中心、上海金茂大厦、上海东方明珠电视塔、上海浦东国际机场、广州新白云国际机场、天津金皇大厦和泰达大厦等许多高知名度的建筑，都使用了ppg制造的建筑涂料。

The chelys-lyra had the same kollopes and plektron as the kithara, but the plektron cord was attached to the base of the outer arms more often than to the base of the soundbox.

以下内容引用自Diane Touliatos-Miliotis的文献：Chelys-lyre的其他部件包括：一个donax，这可能是安置在两角之间为之起桥梁和支架作用的芦苇杆；pecheis，里拉琴从外部置入共鸣箱的部分；zugon或者crossbar，被刻上刻痕并架在两角上部的末端，里拉琴像萨基拉琴一样也有kollopes和琴拨，但固定琴拨的绳索常常栓在角外侧的底部而不是共鸣箱的底部。

The "pecheis"were the arms of the lyre that entered the soundbox from the front. The "zugon" or crossbar was notched across the upper ends of the arms to which the seven strings of sheepgut were attached. The chelys-lyra had the same kollopes and plektron as the kithara, but the plektron cord was attached to the base of the outer arms more often than to the base of the soundbox.

以下内容引用自Diane Touliatos-Miliotis的文献：Chelys-lyre的其他部件包括：一个donax，这可能是安置在两角之间为之起桥梁和支架作用的芦苇杆；pecheis，里拉琴从外部置入共鸣箱的部分；zugon或者crossbar，被刻上刻痕并架在两角上部的末端，里拉琴像萨基拉琴一样也有kollopes和琴拨，但固定琴拨的绳索常常栓在角外侧的底部而不是共鸣箱的底部。

A poet is a man who puts up a lad de r to a star and climbs it while playing a violin.

诗人是这样的人，他架起通向星星的梯子--一边爬梯子一边拉提琴。

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