查询词典 main beam

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，当采用截面刚度较大的拱肋、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，拱桥面外稳定高于面内稳定，拱桥的面内稳定将控制设计。

Company's main products are what the city communications cable, the center beam tube fiber optic cable, set-cutter-type cable, ribbon cable, copper clad aluminum wire, prestressed wire, security fence, and annual production capacity of nearly 800 million yuan.

公司主要产品有市话通信电缆、中心束管式光缆、松套层绞式光缆、带状光缆、铜包铝线、预应力钢丝、安全隔离栅等，年生产能力近八亿元。

These teaching staff bear are worn the main responsibility that breeds social place to want ridgepole and beam-pillar of the state .

这些教育工作者肩负着培育社会所需栋梁的重要责任。

The essay analyzes shuttle cracks produced in the middle of the reinforced concrete beam, and deals with a few aspects of common shapelessness, it also discusses the main reason why the shuttle cracks appear and offers what should be paid attention to in designing and carrying, and some general managing methods after the cracks come.

对现浇混凝土大梁腰部出现的梭形裂缝进行了分析，并从常见变形的几方面进行了论述。讨论了形成梭形裂缝的主要原因，提出了设计施工中应注意的问题及出现裂缝后的一般处理方法

At the beam parameters of 450kV, 2. 3kA, and peak magnetic field of 0.6T, output microwave power of 230MW and efficiency of 23% are got, the mode is a typical TM〓 with the main frequency of 10.33GHz, the spectral property is good.

在450kV，2.3kA束流（束流参数远未达到最佳状态）和峰值磁场0.62T情况下，产生了230MW的微波辐射功率，效率达23％；模式是单纯的TM〓，主频率为10.33GHz且频谱特性较好。

This paper presents the different arranging style of beam and arch and suspender which are the main parts of the reinforced concrete tied-arch bridge. It is brief the analysis of the mechanical behaviors of each type.

本文介绍了结合系、吊杆和拱肋等系杆拱桥的主要组成部分的不同布置形式，简要地从力学角度出发分析了不同系杆拱桥的特征。

On the North River Bridge Weicheng CFST arch main bridge construction S233 Provincial Highway Bridge (Gaoyou Depalletizing three to Jiangdu Port Section) under a span of 80.6m CFST arch, rigid tie beam for 1.4m × 1.8m pre-stressed box girder, cast-in-place method using stent Construction .

浅谈北澄子河大桥钢管砼拱主桥施工大桥为S233省道的一座跨径80.6m的下承式钢管混凝土拱桥，刚性系梁为1.4m×1.8m预应力箱形梁，采用支架现浇方法施工。

It was point out that main roof can form the voussoir beam structures in the inclination, and immediate roof located at the middle\|lower section of a longwall face probably forms a voussoir arch structure with a small scale because of waste filling.

提出了大倾角条件下老顶岩层在运动中易于形成倾斜砌体结构板大结构，直接顶岩层则因上段冒落矸石充填，在采场中下段形成砌体梁小结构，并探讨了中下段小结构平衡的极限条件和结构失稳形式

In producing technics aspect, the main effect factors to size are walking beam furnace and universal rolling.

在生产工艺上，对尺寸影响最大的是步进式加热炉、万能轧制。

Taking normal circulation of heating furnace walking beam for example, the structure and operating principle of three main current change valves are raised with the emphasis on the pressure oil change under each action.

以加热炉步进梁正循环为例，阐述了三个主要电液换向阀的结构及动作原理；并详细分析其每一动作中控制油路压力油的变化情况；说明了将控制油路由"外控"改为"内控"后系统仍然能正常工

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