查询词典 steel structure

Some studies indicate that the industry concentration ratio is too low and the scale of firms is too small which is bad for the improvement of efficiency,but others has the opposite opinions that China steel industry has the characteristic of diseconomy of scale and there is not an obvious relation between efficiency and market structure.

关于市场结构和经济绩效之间的关系，概括起来主要有市场力量假说和效率结构假说。不同的假说意味着不同的政策含义。确定我国钢铁行业规模效率特征和市场结构与企业效率的关系是实施正确产业政策的基础，具有重要意义。

It is important to make clear whether the steel industry has the characteristic of scale economy or diseconomy of scale and the relation between efficiency and market structure which is the foundation of making reasonable industrial policy.

为此本文首先采用数据包络方法测量和分析钢铁企业技术效率、纯技术效率和规模效率，随后从企业的角度系统的分析钢铁钢铁行业市场结构、企业规模与企业效率之间的关系，得出的结论是我国主要钢铁企业存在规模不经济特征，大企业相对小企业没有效率优势；市场力量假说和效率结构假说在我国钢铁业市场均不成立。

The SEM results indicated that a typical donga structure layer appeared on the surface of stainless steel wire mesh support after anodic oxidation procedure.

SEM结果表明，经阳极氧化工艺处理过的不锈钢金属丝网载体表面形成了一层沟壑形态的复合氧化膜。

There is difficult of joining coupling box of driving system of section mill ,so a mill jigger equipment was developed by Jiaozuo Iron and Steel Co which has simple structure,and can shorten the shafts changing time from 6 hours to 4 hour

由于型材轧机主传动系统中轧机与齿轮箱、轧机与轧机间梅花接轴联接困难，焦作钢铁公司研制出一种轧机盘车装置，该装置结构简单，可使更换工装时间从 6h缩短为 4

The real estate industry is an important pillar of the national economy, industry, the driving iron and steel, building materials and household goods such as household electrical appliance industry played a significant role in the financial sector stability and development for the promotion of the consumption structure upgrading, plays an important role in improving people's livelihood.

房地产业是国民经济的重要支柱，工业，推动钢铁，建筑，如家庭材料和家居用品家电产业中发挥了金融部门的稳定和消费结构促进发展的重要作用升级，在改善民生方面发挥重要作用。

Duralumin gasreducer:single stage type diaphragm pressure-reducing structure and stainless steel diaphragm are suitable for non- corrosive gas,standard gas,clean gas and mixed gas.

硬铝气体减压器：单级式膜片减压结构，不锈钢膜片，保证输出压力的稳定，适用于非腐蚀性气体、标准气体、纯净气体、与混合气体。

Duralumin gasreducer:Double stage type diaphragm pressure-reducing structure and stainless steel diaphragm are suitable for non- corrosive gas,standard gas,clean gas and mixed gas.

硬铝气体减压器：单级式膜片减压结构，不锈钢膜片，保证输出压力的稳定，适用于非腐蚀性气体、标准气体、纯净气体、与混合气体。

The article describes the characteristics in structure of edger stand at rougher area of 2150mm hot continuous mill supplied for Anshan Steel and the merits and shortcomings on the design in comparison with similar edger stands home and abroad.

介绍鞍钢2150mm热连轧机机组粗轧区立辊轧机结构上的特点，同国内外同规格的立辊轧机进行比较，说明该轧机设计上的优缺点。

The results showed that soil corrosion of mild steel was not only influenced by surrounding media but also controlled by the amout, structure and efflorescence extent of corrosion products at different stages.

本工作以埋在苏打盐土中的A3钢为例，用实验论证低碳钢的腐蚀速度与腐蚀发生与发展的不同时期密切相关，为认识土壤中钢铁的自然腐蚀规律及其机理提供依据。2实验方法2。

Structure form adopts converse triangle beam double-hole connection welded by general electric trolley wall plate and steel plate, connection shaft, triangle beam bottom is connected with girder by nut and thrust bearing, triangle beam could rotate 360 degrees horizontally, thus realize whole set electric trolley horizontal rotation, largely reduce curve track curvature radius of electric hoist traveling mechanism.

描述： 结构形式采取通用电动小车墙板与一个钢板和连接轴组焊的倒三角形吊梁双孔连接，三角吊梁下面通过螺母及推力轴承与一个横梁连接，三角吊梁相对横梁可在水平方向做360度旋转，从而实现电动小车的整体水平方向转动，大大减小了电动葫芦运行机构弧形轨道曲率半径。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。