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Making the full use of the theoretical knowledge of FEA,contact mechanics and friction wear,and integrating with the research of other domestic and international scholar. Starting with analyzing working characteristics of journal bearing of roller cone bit, we finished the contact FEA of the journal bearing and the thrust bearing, using ANSYS software. The tolerance ranges of journal bearing of a roller cone bit are specially studied.

本文利用有限元、接触力学和摩擦学理论知识，同时结合国内外其它学者的研究，从分析牙轮钻头滑动轴承的工作特性入手，利用软件ANSYS完成了牙轮钻头中大、小轴承及止推轴承的接触有限元分析工作，对牙轮钻头滑动轴承的尺寸公差的取值，进行了专门的研究和探讨。

The Shandong Linqing communciation bearing factory beginning constructed in 1991, was one specialized production circular cone Roller bearing, the British system circular cone Roller bearing, outside the spherical surface bearing private enterpriseSince 1996, along with the service development, the product quality enhancement and the service consummation, more and more many overseas customers has started to like our product.

山东临清通联轴承厂始建于1991年，是中国汽车市场定点配套最佳合作诚信单位之一。是一家专业生产圆锥滚子轴承、英制圆锥滚子轴承、外球面轴承的私营企业。自1996年以来，随着业务的发展，产品质量的提高和服务的完善，越来越多的国外客户开始喜欢我们的产品。

The Shandong Linqing communciation bearing factory beginning constructed in 1991, was one specialized production circular cone Roller bearing, the British system circular cone Roller bearing, outside the spherical surface bearing private enterpriseSince 1996, along with the service development, the product quality enhancement and the service consummation, more and more many overseas customers has started to like our product.

山东临清通联轴承厂始建于1991年，是中国汽车市场定点配套最佳合作诚信单位之一。山东临清通联轴承厂是一家专业生产圆锥滚子轴承、英制圆锥滚子轴承、外球面轴承的私营企业。山东临清通联轴承厂自1996年以来，随着业务的发展，产品质量的提高和服务的完善，越来越多的国外客户开始喜欢我们的产品。

According to our the bearing's count book and quantity for count up all parts with bearing, the used bearing are equal of all parts with bearing in quantity.

根据我的培林帐本和统计装培林产品的总数﹐已用的培林与装培林的产品数量是相符的。

On the basis of a study and elaboration of data, some important conclusions are presented:(1) ruby deposits in marbles occur in the plutonic metamorphic zones of orogens where deep fault structure is developed;(2) ruby-bearing rocks are calcic crystalline marbles, rather than magnesian marbles;(3) amphiboles in ruby-bearing rocks are not tremolites, but silica-poor, alumina-rich and chrome-bearing calcic amphiboles, such as chrome-bearing magnesio-sadanagaites; and (4) the deposits are genetically of thermodynamical metamorphism type, rather than of pneumatolito-hydrothermal type or skarn type.

目前，对于与此类型矿床找矿相关的若干成因问题的认识，还相当模糊，主要表现在以下几方面：①对此类型矿床的产出构造背景认识不清；②认为含矿岩石为镁质大理岩或镁质夕卡岩；③认为含矿岩石中与红宝石共生的角闪石为透闪石；④认为此类矿床的成因类型为&气成一热液型&或&夕卡岩型&。本文在实际研究(王礼胜，1996)和文献资料整理的基础上，分别对这些问题给予了澄

Directed against the problem on confirming vertical bearing capacity of large diameter cast-in-place pile in the west of coteau area of Yunnan province, the paper, analyses the influence degree of the variety of soil physics and mechanics property in area geology condition on bearing capacity of pile foundation, through 5 piles' loading test; the influence degree of construction technics on bearing capacity of pile foundation under the influence of every exterior factors; the influence degree of grouting injection around the pile shaft on bearing capacity of pile foundation.

本文针对滇西山区大直径灌注桩竖向承载力确定存在的问题，进行了5根试桩的静载荷试验，分析了区域地质条件下土的物理、力学性质的变化对桥梁桩基承载力的影响程度；地下水对桩承载力的影响程度；各种外部因素影响下，桩的施工工艺对桩承载力的影响程度；通过在桩体周围土中注浆对桩承载力的影响程度。

Is the circular parts, for the two bearing rings, or bearing washer, or between two and a half or two and a half between the bearing ring between the bearing washer in order to maintain between them under the axial distance.

是环形零件，用于两个轴承套圈或轴承垫圈之间或两半轴承套圈之间或两半轴承垫圈之间以使它们之间保持所规定的轴向距离。

The effect of the friction moment of bearings on performance is researched. The forming mechanic and influence factors of the friction moment of ball bearing are analyzed. Suitable clearness and groove radius of ball bearings are obtained by experiment and calculation. The relationship between starting moment of ball bearing and various lubricants is analyzed. The measure for reducing the starting moment of ball bearing is put forward, it is the theory basis and reference for ball bearing design of small power unit system.The system is an unstable system when the 24-station ball pen tip production machine is running because of various interferences. It is too hard to describe the system by linear method, so the nonlinear formulation must be used.

研究了小动力头系统轴承摩擦力矩对运转性能的影响，分析了球轴承摩擦力矩的产生机理及影响因素，采用实验和计算的方法得到了动力头球轴承的合理间隙及球轴承沟曲率半径，分析了各种润滑剂与球轴承启动力矩的关系，并提出了减小轴承启动力矩的措施，为小动力头系统的轴承设计提供了理论依据及实践参考。24工位笔头加工机械在笔头的生产加工过程中，由于受到各种因素的干扰是一个不稳定系统，其稳定性会发生一定变化，而且很难用线性方法表述。

Japan IKO needle-type needle-like shell to maintain needle-type Rotary cut type needle roller bearing composite thrust bearing inner wheel sliding bearing rod end spherical bearings spherical joint bearing L-shaped linear bearings.

日本 IKO 针状保持型针状薄壳型针状旋削型针状复合型滚子轴承推力轴承内轮球面滑动轴承杆端轴承球状L形关节轴承直线轴承。

The company owns an advanced numerically controlled production line, and could provide several standard products such as single-row ball slewing bearing, cross roller slewing bearing, double-row ball slewing bearing, three-row roller slewing bearing, according to Standard "JG/T66-1999","JG/T67-1999","JG/T68-1999" and "JB/T2300-1999", and also could provide non-standard products according to the requirements of customers.

项目介绍（简介、技术特点、应用范围、市场前景、效益分析及对投资者要求。500字以内）回转支承产品结构有单排球式、双排球式、三排柱式、交叉滚柱式四大系列，可以按国家建筑机械行业标准《JG／T66—1999》、《JG／T67—1999》、《JG／T68-—1999》和机械行业标准《JB／T2300—1999》提供系列产品，同时也可以按照客户的要求来设计、制造非标准回转支承产品。

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