查询词典 high-speed steel

Combining with the National Natural Science Foundation ofChina(No.50478032), following researches were done in this thesis: 1 The variation regularity of the ultimate anti-bending capacity of therectangular-sectioned beam with different corrosion has been obtained through thequalitative analysis of 48 beams (32 corroded beams and 12 comparing beams) withaccelerated corrosion; 2 The conclusion has been obtained that the strain of corroded steel bar andconcrete no longer fit in with the assumption of plane section through the analysis ofthe strain data, the strain relation of steel bar and concrete in the mid-span section ofvariously corroded beams at ultimate has been obtained. Through the building of newgeometric relation, the expression of the height of compressive area in the corrodedbeam with rectangular section has been deduced, and the formula with corrosion rateas the main variable for the anti-bending capacity of the corroded concrete beam hasbeen suggested and verified by experiment.; 3 The influence of steel bar corrosion and the concrete regression to the flexureductility coefficient of the corroded structure component has been analyzed. Based onthe relation of steel bar and concrete at yield and ultimate, the expression for theflexure at yield and ultimate of corroded reinforced concrete beam, and the model forthe calculation of the flexure ductility has been built.

本文结合国家自然科学基金项目(50478032)"既有钢筋混凝土桥梁时变可靠度研究"，主要进行了以下研究工作： 1通过对48根快速锈蚀钢筋混凝土矩形截面梁(32根锈蚀梁和12根对比试验梁)数据的定性分析，得到了不同锈蚀率下，锈蚀钢筋混凝土矩形截面梁极限抗弯承载力的变化规律； 2通过对应变数据的分析，论证了锈蚀构件钢筋和混凝土的应变不再符合平截面假定的结论，并通过回归分析得出了不同锈蚀率的螺纹钢筋梁和光圆钢筋梁在极限弯矩作用下，跨中截面处钢筋应变和钢筋处混凝土应变的关系，通过构造新的几何关系，得出了锈蚀钢筋混凝土矩形截面梁计算受压区高度的表达式，既而得出了以锈蚀率为主要变量的锈蚀钢筋混凝土矩形截面梁的正截面抗弯计算建议公式，并通过试验数据加以验证； 3分析了钢筋锈蚀和混凝土劣化对锈蚀构件曲率延性系数的影响，结合钢筋屈服和极限弯矩两种状态下钢筋和混凝土的应变关系，分别得到了锈蚀钢筋混凝土矩形截面梁屈服曲率和极限曲率的计算表达式；既而推导出曲率延性系数的计算模型。

At present company's products mainly include: precision machinery Dustproof Series: rubber protective cover, oil shield, shield plate, screw shields, flexible organ-style guard rail, multi-use type shields, welding shields, stainless steel armor-type shield machine, the overall telescopic organ shields, steel plate, stainless steel guard rail machine tools, special steel products produced by telescopic guard.

目前公司产品主要有：精密机械防尘罩系列：橡胶防护罩、耐油防护罩、钢板防护罩、丝杠防护罩、柔性风琴式导轨防护罩、多用型护罩、焊接护罩、不锈钢盔甲式机床防护罩、整体伸缩式风琴护罩、钢板、不锈钢板机床导轨防护罩、特殊钢材制作的伸缩式护罩。

The steel structure of the main body forms the whole giant spatial saddle-shaped steel truss knitting type "the bird nest", the steel structure totally uses the steel quantity is 42,000 tons ,the concretes stand divides into upper, middle and lower three, the stand concrete structure is underground 1 ,on the ground 7 floor of reinforced concrete frame - shear wall structural system.

主体钢结构形成整体的巨型空间马鞍形钢桁架编织式"鸟巢"结构，钢结构总用钢量为4.2万吨，混凝土看台分为上、中、下三层，看台混凝土结构为地下1层，地上7层的钢筋混凝土框架-剪力墙结构体系。

The iron and steel industry has the very strong economies of scale characteristic, however the scale of our Iron and steel enterprise is generally small, the majority has not achieved the economies of scale, large-scale and the extra large type Iron and steel enterprise relative smalls does not have the remarkable efficiency superiority, our country iron and steel industry does not have the remarkable economies of scale characteristic obviously.

钢铁工业是具有很强规模经济特征的行业，然而我国钢铁企业规模却普遍较小，大多数并未达到规模经济，大型和特大型的钢铁企业相对中小钢铁企业不存在显著的效率优势，可见我国钢铁工业并不存在显著的规模经济特征。

The test results showed that as steel contained 2%~4% Cu,the structure of quenched and tempered steel was sorbite matrix with dispersed rich copper phase;and as Cu content in steel increased from 2% to 4%,the hardness HRC value of quenched and tempered steel increased from 38 to 48,the antibacteria...

实验结果表明，当钢中含2%~4%Cu时，钢淬回火后的组织为索氏体基体上弥散分布富铜相，当钢中铜含量从2%增加至4%时，淬回火后钢的HRC硬度值从38增加到48，大肠杆菌的杀菌率从42%增加到95%，在5%硫酸中致钝电流和电压减少，使钢易于钝化。

It can produce many kinds of metal products. Such as flat washer, spring washer, punching hardware, machine parts and so on. All the products are in various standards and specifications made of materials(low carbon steel,45# steel,50# steel, 65Mn steel, A2、A4、copper、aluminum) which are imported from Korea, Japan, Taiwan and so on.

公司主要生产各种标准、各种规格、各种材料（低碳钢、45#钢、50#钢、65Mn钢、A2、A4、铜、铝）的平垫圈、弹簧垫圈、齿轮垫圈及其他特种垫圈、冲压件、机械零部件，材料主要来源于韩国、日本、台湾等国家和地区。

It has mainly actions as follows: accumulating steel wire; sending steel wire; drawing steel wire; clipping; tighten; squeezing flat; regulating position of strapper, etc; using annealed rod of φ6.5,φ6.0 or hot-finished rod ofφ6.0 directly as strapping steel wire; it straps and tightens for 720°,and then squeezing flat to make sure that it straps firm and not easily loose.

它具有如下主要动作：蓄丝、送丝、抽丝、剪断、拧紧、挤平、打捆机位置调节等；使用φ6.5，φ6.0的退火盘条或直接采用φ6.0的热轧盘条作捆丝；其捆结拧紧720°，然后挤平，保证了捆结牢固，不易松脱。

Recently, beijing of manager of 45 steel look forward to can search steel price closely to stop drop effective prescription because an urgent announcement, the sale of look forward to of 45 steel of countrywide deputy always travel-stained hurry to Beijing, hard look for lets steel price stop drop effective prescription.

近日，45家钢企老总北京密会寻钢价止跌良方因为一份紧急通知，全国45家钢企的销售副总风尘仆仆赶到北京，苦苦寻觅让钢价止跌良方。

According to the 1999 survey is not complete, the current national production of fake and shoddy construction steel production enterprises amounted to one thousand, throughout 21 provinces, autonomous regions, the annual production capacity of 5 million tons, of which the vast majority of production "of steel in" and use "of the steel to" unburnt earthenware rolled Luowengang, W-renewable steel.

据1999年的不完全调查，目前全国生产假冒伪劣建筑钢材的生产企业达一千余家，遍及21个省、自治区，年生产能力达500万吨以上，其中，绝大多数是生产"地条钢"和用"地条钢"坯轧制螺纹钢、W形再生钢。

Reportedly, in recent years, regional manufacturing and selling counterfeit and shoddy steel repeated offences, particularly regional production "of steel in" and use "of the steel to" unburnt earthenware Luowengang rolled steel and other construction issues very prominent.

据了解，近年来，区域性制售假冒伪劣钢材的违法行为屡禁不止，尤其是区域性生产"地条钢"和用"地条钢"坯轧制螺纹钢等建筑钢材的问题十分突出。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48