主梁

Great progress has been made by taking the following technical improvement for the 2500 ton Hydropress: to replace thin oil with lithium grease in its lubricating system; to add four manual grease pumps; to lubricate the four griding parts of the movable beam and the six parts of the column plug sleeves.

通过对2500吨水压机润滑系统改稀油润滑为锂基润滑脂润滑，加装四台手动干油泵，对活动梁四个导向部位和主柱塞压套六个部位实施油膜润滑的技改实践，使1995年较1994年设备完好率提高1。

There are 2 large anchor bases at north and south of the main stadium of Nanjing Olympic Sports Center and a 396 meters prestressed ground beam connects these two anchor bases.

南京奥体中心主体育场南北分别设计2个大型拱脚，在南北拱脚之间由396m长预应力地梁连接。

The non-linear principal resonance of a conductive beam plate in a magnetic field subjected to some mechanical loadings is studied.

研究了磁场环境中受机械载荷作用梁式薄板的非线性主共振问题。

Concrete work covers the following aspects:(1) Based on the finite displacement theory and the characteristics of Self-anchored and single-tower suspension bridge, and considering the nonlinear factors. A span of 80 +190 +260 +80 m independence of the self-anchored suspension bridge tower carried out a detailed analysis. Through static analysis of the vector cross-over cable, cable-plane form, stiffening beam camber and the temperature load on the structure.

具体工作如下：(1)基于有限位移理论，针对自锚式独塔悬索桥的受力特点，全面考虑几何非线性因素对自锚式悬索桥的影响，对一座跨度80+190+260+80m的自锚式独塔悬索桥进行了详细分析；通过静力计算来分析主缆矢跨比、索面形式、加劲梁拱度和温度荷载对结构的影响。

On the basis of kinematic analysis of beam pumping unit,the general dynamics equation in the form of virtual power was applied to analyze the contribution of every part including balancing weight of a beam pumping unit to crank axle torque in consideration of inertia effects. The exact analytical expression for computing crank axle torque was obtained.

根据抽油机各处在任一瞬时所受的主动力和虚加的惯性力在任一虚速度上所作的元功率之和等于零的原理，考虑惯性的影响，应用虚功率形式的动力学普遍方程，对游梁式抽油机各部件对曲柄输出轴扭矩的贡献进行了分析，得到了曲柄输出轴扭矩的精确解析式。

Relation of main workshop with different structure, internal force of slab floor and stiffness of bearing beam is discussed by finite element program considering space frame of slab floor, and its result is concluded.

使用考虑楼板作用的空间框架有限元程序，对不同结构型式的主厂房、楼板内力与支承梁刚度的关系进行探讨，并对其结果进行分析总结。

This paper gives an account of the construction schemes for superstructure of the main bridge of Wuhan Tianxingzhou Changjiang River Rail-cum-Road Bridge,including various techniques having been applied to the pylon construction,steel girder erection,stay cable and deck slab installation,and pylon and steel girder parallel construction.

介绍武汉天兴洲公铁两用长江大桥主桥上部结构施工方案，包括主塔施工、钢梁架设、斜拉索安装、桥面板安装以及塔梁同步施工技术。

Border fills the frame that prop up (Knee-braced Frame, KBF) is one ductility cost is set around bridge column connective can border is maintained, advocate the aseismatic construction system that the join that prop up is maintained in this border and makes.

梗概： 隅撑支撑框架(knee-braced frame，KBF)是在梁柱连接的四周设一延性耗能的隅撑，主支撑连接在此隅撑上而构成的抗震结构体系。

This paper deals with the construction of lifting and installation of the north main cable saddle s of Wuhan Yangluo Changjiang River Highway Bridge by the lifting support made up of the main girder and hoisting trolley of overhead launching gantry.

介绍武汉阳逻长江公路大桥北主索鞍采用架桥机主梁和起重台车等组成的安装吊架进行吊装施工的情况。

Officiating guests at the opening ceremony were Prof Jack C Y Cheng, Pro-Vice-Chancellor; Prof John C K Lee, Dean of Education; Prof Youlian Hong, Chairman of organizing committee of ICCO 2008 and Chairman, Department of Sports Science and Physical Education; Prof Leung Yuen-sang, Head of Chung Chi College; Prof Henry N C Wong, Head of New Asia College; Prof Stephen H S Wong, Dean of Students, United College and Professor, Department of Sports Science and Physical Education; Ms Bonnie Kan, College Secretary, Shaw College and Dr Patrick Yung, Deputy Director, Hong Kong Jockey Club Sports Medicine and Health Sciences Centre.

开幕典礼之主礼嘉宾包括：中大副校长郑振耀教授、中大教育学院院长李子建教授、ICCO 2008 筹备委员会主席暨体育运动科学系系主任洪友廉教授、祟基学院院长梁元生教授、新亚书院院长黄乃正教授、联合书院辅导长暨体育运动科学系王香生教授、逸夫书院院务主任简丽嫦小姐及香港赛马会运动医学及健康科学中心执行总监容树恒医生。

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