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On the basis of the results of laboratory and field experiments the question is discussed on the technology of ionic bead welding, and wear-resistant alloy for valve body and valve cup, and the data of the experiments in oil fields are listed. The results of ...

本文通过室内试验分析和现场试用情况论述了凡尔体和凡尔座堆焊耐磨合金及堆焊工艺方面的问题，并列出了现场的试用数据，结果表明等离子焊的凡尔体和凡尔座的使用寿命有明显提高。

The bridge type derrick big car will appear to chew track phenomenon in the movement, slight of chew a track will result in a good luck and orbit of the on the side have obvious of wear away trace, severity chew a track will result in a good luck and orbit of the on the side metals be peeling off or the round's good luck outwardly transform and even jump the track to result in graveness Human body dead and injured and equipments trouble.

桥式起重机大车在运行中会出现啃轨现象，轻微的啃轨会造成轮缘及轨道的侧面有明显的磨损痕迹，严重啃轨会造成轮缘和轨道的侧面金属剥落或轮缘向外变形，甚至脱轨造成重大人身伤亡和设备事故。

First, the theory of fretting wear and studies on fretting fatigue were introduced and the parametric method was used in the process of creating the model of dovetail joints in UG software. The elastic contact problem is analyzed in finite element method and is used to the parameters' distribution and contact stress of the joint are obtained on the base of ANSYS code. With the effect factor of load frequency, the prediction method of fretting fatigue life of dovetail joint under low and high/low cycle complex load is proposed. The proposed model and the approach were verified by experiments.

本文介绍了微动损伤的机理和微动疲劳寿命的研究方法；利用UG软件对燕尾榫联接结构创建了参数化实体模型；基于ANSYS软件平台求解弹性接触问题，获得了榫联接结构接触应力及接触状态量的分布；在已有微动疲劳寿命预测模型的基础上，引入载荷频率影响因子，对低周、高低周复合载荷作用下的燕尾榫联接结构进行了微动疲劳寿命的预测，与试验结果对比表明采用本文提出的方法预测榫联接结构的微动疲劳寿命是有效的。

Business, half-commercial Web-additional functionality, including drying, cooling, and so on, for adapting to the commercial business card printing and membership card production speed, maxzhy, multi-batch, nulti, personalized, gentrification, colorizing, and so on, are often very necessary accordingly, longer paper so wear paper consumption of paper.

贸易、半贸易轮转机的附加功用众，包含烘干、加热、上光等，差于合适贸易制卡和会员卡制息迟速率、不小批度、众批次、众层背、个性冻、矮档冻、不黑白冻等请求而言，不常是格外必给的，但响答不天，加不幼了纸路，使不脱纸、调试的纸张补偿度进一步加不小。

Commercial, half-commercial Web-additional functionality, including drying, cooling, and so on, for adapting to the commercial business card printing and membership card production speed, maxzhy, multi-batch, nulti, personalized, gentrification, colorizing, and so on, are often very necessary accordingly, longer paper so wear paper consumption of paper.

贸易、半贸易轮转机的附加功用众，包含烘干、加热、上光等，差于合适贸易制卡和会员卡制息迟速率、不小批度、众批次、众层背、个性冻、矮档冻、不黑白冻等请求而言，不常是格外必给的，但响答不天，加不幼了纸路，使不脱纸、调试的纸张补偿度进一步加不小。

Commercial, half commercial web offset press a number of additional features, including drying, cooling, and so on, for adapting to the commercial business card printing and membership card production speed, maxzhy, multi-batch, nulti, personalized, gentrification, colorizing, and so on, are often very necessary accordingly, longer paper so wear paper consumption of paper.

贸易、半贸易轮转胶印机的附加功用众，包含烘干、加热、上光等，差于合适贸易制卡和会员卡制息迟速率、不小批度、众批次、众层背、个性冻、矮档冻、不黑白冻等请求而言，不常是格外必给的，但响答不天，加不幼了纸路，使不脱纸、调试的纸张补偿度进一步加不小。

Plunger core of this pump is made of metal tube with several radial holes in the middle. There is an elastic expansion sleeve on the middle screen plunger core; several wear resistance seal rings are on the expansion sleeve.

该泵的柱塞芯由中部开有若干个径向槽孔的金属管制成，柱塞上装有一个弹性伸缩套，套在中心筛管柱塞芯上，在弹性伸缩套外面套有若干个耐磨的密封环。

Palletized Load Systems and PLS trailers are best known for their automated container/pallet loading arms, and for their Universal Power Interface Kit that can add modules for firefighting, construction, cranes, et. al. The M1000/1070 Heavy Equipment Transporters are flatbeds that can transport a 70-ton Abrams tank – or anything less – in order to save wear and tear on expensive armored vehicles and on the roads.

M1074/75货盘装载系统和PLS拖车因为其自动化集装箱/货盘装载武器，及可以添加消防，建筑，起重机等模块的通用电源界面工具包而出名。M1000/1070重型装备运输车是一种可运输70吨Abrams坦克或任何少于70吨重量的武器的拖车，目的是为了减少武器在昂贵的装甲车辆和道路上的磨损。

The wear of hydraulic system failure occurs after the overhaul, not to make the necessary system and flush the tank, causing the same type of fault on the same cranes on the repetition.

4液压系统出现磨损性故障大修后，不对系统与油箱进行必要的冲洗，造成同类型故障在同一台克令吊上重复发生。

The results show that metal wear-self-repairing additive has excellent friction-reducing effect on cylinder-piston ring friction pairs and auto-repairing effect on cylinder inner surface.

研究结果表明，金属磨损自修复剂对缸套-活塞环摩擦副具有良好的减磨效果，可自动修复缸套表面。

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。