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In recent years many prestressed concrete highway bridges in different types have been built in this country, such as simple supported girder bridges, balanced cantilever T-frame bridges, continuous girder bridges, continuous rigid frame bridges, cable-stayed bridges and composite arch bridges.

近几年来，我国建造了多座预应力混凝土桥，结构型式有简支梁、T型刚构、连连梁、连续刚构、斜拉桥与组合式拱桥等。在每种桥型中，选择具有代表性的桥梁，对其结构特点，设计与施工新技术，加以分析讨论。

Card sets of connections, in China only developed in recent years, it's connecting and sealing principle is that when the nut tightened up, the card sets under pressure to edge into the tube outer wall of the Department of bite, card sets and outside the cone with the joint under pressure All cone density in vivo, which can reliably prevent the leakage.

卡套连接，在我国近年才发展起来，它的连接和密封原理是，当旋紧螺母时，卡套受到压力，使其刃部咬入管子外壁，卡套外锥面又在压力下与接头体内锥面密合，因而能够可靠地防止泄漏。

Combined with new tendency and practice in internal combustion engine industry at home and abroad in recent years,this paper suggests that machining cone of intake and exhaust valve seat insert and guide tube hole is the key technique in machining complicated cylider-head.

结合近年来国内外内燃机行业发展的新趋势和工作实践，对结构复杂的气缸盖机械加工提出了进、排气门座圈锥面与导管孔的加工是其工艺技术关键，从定位方式、基准选择、气门座底孔与导管孔底孔的加工，气门座圈锥面加工方式和导管孔的加工方式等方面进行了探讨和分析。

Jackson arrived in Tokyo on Sunday, his second visit in recent years, to hold court at an exclusive party where admirers will fork over $3,500 US to spend as little as 30 seconds in his company.

杰克逊抵达东京，于周日，他的第二次访问，近年来，承接法院在接受本社党的地方仰慕者将支付超过三千五百元，美国花费少30秒，在他的公司。

Especially the market of dairy products in the developed country is riper to develop, the market theory is relatively complete too, there are less theories of studying development of market in recent years, and some theories are to study how to exercise restraint in developing scale.

国外，尤其是发达国家的乳制品市场发展比较成熟，市场理论也较完善，近年来研究市场发展的理论较少，而且有一些理论是研究如何限制发展规模。

It produces the domestic "Dongfeng ","jiefang","Huanghe" etc. in the earlier stage. In the later period, it develops and produces the air compressors for Huangarian" IKARUS";"CSEPEL";"LABA"; Czech "SKODA";"LIAZ", Austrian "STEYR", German "DEUTZ";"BENZ";"MAN"; Swedish" VOLVO", Russian" KAMAZ";"CLARS";"MARS", Italian "IVECO", British" PERKINS", American "CUMMINS", Japanese "MITSUBISH","NISSAN","HINO","Korean "HYUNDAI";"DAWOO". In recent years, it introduces the serial air compressors for "Weichai","Huachai" DEUTZ FL412/413; FL912/913,Heavy-Duty Automoblie"STEYRWD615.DFAC CUMMINS 6BT;6CT,Shanghai Deisel D6114,Chongqing Engine Nt855, Xi' an-Volvo, SUNWIN, the domestic Wuxi Diesel, Guangxi Yuchai Diesel, Dongfeng Chaoyang Diesel, Hangzhou Engine, Yunnan Internal Combustion Engine and so on.

前期生产国内的东风；解放；黄河等车型空压机，后期开发生产国外车型有匈牙利的依卡露斯；却贝尔；拉巴，捷克的斯柯达；利亚兹，奥利地的斯太尔，德国的道依茨；奔驰；曼，瑞典的沃尔沃，俄罗斯的卡玛斯；克拉斯；玛斯，意大利的依维珂，英国珀金斯，美国的康明斯，日本的三菱；尼桑；日野，韩国的现代；大宇，及近几年引进的车型：渭柴，华柴的道依茨FL412/413；FL912/913，重汽的斯太尔WD615，二汽的康明斯6BT；6CT，上柴的D614，重发的NT855，桂林大宇，西沃，申沃以及国内的锡柴；玉柴；朝柴；杭发；云内等系列空压机。

State Bureau of Surveying and Mapping Division land mapping senior engineer, science and technology and quality supervision Director Ye silver tiger presentations, in recent years, as urban housing system reform and the rapid development of the real estate industry, consumers in the purchase of commercial housing, a growing number of disputes arising from the area. and in the settlement of such disputes, the lack of uniform standards, the problem is often difficult to make fair and satisfactorily resolved.

国家测绘局国土测绘司高级工程师、科技与质量监督处处长叶银虎介绍，近几年来，随着城镇住房制度的改革和房地产业的快速发展，消费者在购买商品房时，因面积引起的纠纷越来越多，而且这种纠纷在解决时由于缺乏统一的标准，使得问题往往很难公正、圆满解决。

Being expert in inlay embroidery, jacquard embroidery, gold and silver floss embroidery etc., Products of technical contents, the company is among the enterprises with quickest growth paces in chinese decorative fabric industry in recent years.

该公司以镶嵌绣花、提花绣花、金银绒绣花等工艺性产品见长，是近年中国装饰布艺行业成长步伐最快的企业之一。

In recent years one type of machine, the electronic computer, ahs become increasingly important in the lives of all the people in the industrialized nations of the world.

最近一些年里，在世界工业化国家的人民生活中有一种叫电子计算机的机器，其重要性不断增长。

We are interesting in the synthesis and the application of 1,2,3-triazoles inthis paper, which including the following:In the first chapter, we reviewed mainly the development of Huisgen\'s 1,3-dipolar[3+2]-cycloaddition from organoazides and alkynes or alkenes to synthize1,2,3-triazoles in recent years.

本论文针对1，2，3-三唑的合成和应用，主要包括以下方面：第一章对近几年来1，2，3-三唑合成研究进行了概述，总结了有机叠氮和炔烃、烯烃的1，3-偶极环加成反应以及其他方法合成三唑的进展。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。