查询词典 rolling friction

To promote the research and application of permanent magnet synchronous motor traction system of China's urbar rail rolling stock,the application and design characteristics of PMSM,the control techniques and efficiency optimization ways of system are overviewed by discussing the current research all over the world.

为促进我国城轨车辆用永磁同步电机牵引系统的理论研究与应用，结合国内、外研究现状，对城轨车辆用永磁同步电机的应用和设计特点，以及系统的控制技术和效率优化方法等进行了综述。

For the development of high-grade specialty cables and because of special cables in the power, nuclear power, shipbuilding, port machinery, locomotives and rolling stock, rail transportation, tunnels, mineral mining and exploration, land-based marine petroleum engineering, aerospace and other fields have a wide range of applications with a broad prospects for development.

对于发展高档次的特种电缆也由于特种电缆在电力、核电、造船、港口机械、机车车辆、轨道交通、隧道工程、矿产开采和勘探、陆地海洋石油工程、航空航天等领域有着广泛的应用具有广阔的发展前景。

Southern Chinese car group Zhuzhou Electric Locomotive Research Institute was founded in 1959, is a service of rolling stock in the rail transportation industry, science and technology enterprises, is part of China Southern Locomotive and Car Industry Corporation, China Nanche Zhuzhou Electric Locomotive Research Institute of the Group and its subordinate enterprises Nanche time Zhuzhou Electric Co., Ltd., Zhuzhou Times New Materials Technology Co., Ltd. and currently employs more than 5,000 people, assets totaling over 5.0 billion, annual sales of more than two billion yuan.

中国南车集团株洲电力机车研究所始创于1959年，是一家服务于轨道交通机车车辆行业的科技型企业，隶属于中国南方机车车辆工业集团公司，中国南车集团株洲电力机车研究所及其下属企业株洲南车时代电气股份有限公司、株洲时代新材料科技股份有限公司，现有员工5000余人、资产总额超过50亿元，年销售收入已逾20亿元。

Chinese car company in South railway rolling stock, urban rail transit vehicles, various electrical and mechanical equipment and parts, electronic appliances and environmental protection equipment such as product design, manufacture, repair, import and export, sales and leasing, engaged in commerce, technology services, information consultation , The export of labor services, and other services.

中国南车集团公司从事铁路机车车辆，城市轨道交通车辆，各类机电设备及部件，电子电器与环保设备等产品设计、制造、修理、进出口、销售和租赁，从事商贸、技术服务、信息咨询、劳务输出等业务。

Ship has the first conventional ship, the ship's lower deck Shop has the track for the parking of rolling stock, train up and down by the stern boat.

船有常规海船的首位，船的下层铺有轨道，用于停放列车，列车由船尾上下船。

Plus, it's steel-plated in chrome to protect all the computer chips rolling around inside!

另外，它是钢镀铬的，以保护CPU在里面来回乱动！

I started plants from 89 major steel shutter fire production machinery, machine rails, steel splint fire Burkina Faso, linked to the base, O-shutter doors machinery, mechanical sound track, Yemen to set the machinery, garage door machine , Rails machinery, steel door frames machines, door-rolling machines, steel-lined steel equipment, large-scale composite Caigang sandwich board production lines, Caiwa machine, to Yemen machinery, fire composite steel shutter doors machinery, C, Z-beam equipment, 100 kinds of products.

我厂从89年开始主要生产防火钢质卷帘机械、导轨机、防火布基钢质夹板、底座挂钩，澳式卷帘门机械、无声导轨机械，转叶门全套机械，车库门机、导轨机械，钢门框机、门板轧边机，塑钢钢衬设备，大型彩钢夹心复合板生产线、彩瓦机、转叶门机械、防火复合钢质卷帘门机械、C、Z型钢设备等上百种产品。

Can be reinforced to the community, to provide mechanical connection technology, processing equipment, sleeve, rolling wheels, cutting tools, torque wrenches, wrench work, steel wire gauge, such as the first dedicated full-service, high quality and good product quality the integrity of desire with the community work together to create a "reinforced" Connect the cause of the brilliant future.

可为社会各界提供钢筋机械连接技术、加工设备、套筒、滚丝轮、切削工具、力矩扳手、工作扳手、钢筋丝头专用量规等全程服务，以优质的产品质量和良好的诚信渴望与社会各界通力合作，共创&钢筋&连接事业的绚丽未来。

Based on the tests of rolling and drawing alloying wire, the good structure and properties of large gauge highcarbon steel wire are obtained by adding a certain amount of Cr to steel.

1前言近20年，国际上预应力钢丝，钢绞线广泛用于高速公路、大跨度桥梁、高层建筑等工程上，其发展方向是大规格、高刚度、低松弛、耐腐蚀、大盘重。

This article focuses on the application of Q450NQR1 high strength anti-corrosion steel in manufacturing of railway rolling stocks.

本文研究了Q450NQR1 高强度耐候钢在铁路货车制造业中的应用技术。

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