Establish the erosive wear mechanism of drilling string in air drilling and put forward that erosion wear is a substantial cause to promote drill string failure.
初步确立了空气钻井钻柱冲蚀磨损机理，提出钻屑冲蚀是促使钻具失效的一项重要原因。
It is pointed out that, in the case of having radial flexible mechanism, the wear between anti rotation mechanism and scroll wrap exhibits synchronism and self compensation.
指出在具有径向柔性机构的情况下，该防自转机构和涡旋盘齿的磨损具有同步性和自动补偿性。
In the low wearing area of the loose abrasive of tiny particle, wear mechanism is mainly the micro-cuts wearing mechanism, and the surface has obvious furrow and indentation.
在小颗粒松散磨料的低磨损区，磨损机理主要是微观切削磨损机理，表面有明显的犁沟或者印痕。
Objective To investigate the cause and process of crack generation and propagation in fretting wear of bone and to study the fretting wear mechanism between prostheses and bones.
目的探索骨组织在微动过程中裂纹产生和扩展的原因及过程，弄清假体-骨组织界面微动磨损的机理。
The mechanism of cutting force, cutting temperature and tool wear in the machining of quenched steel and nickel based high temperature alloy with ceramic tools are analyzed in the paper.
重点分析了陶瓷刀具在切削淬火钢和镍基高温合金中有关切削力、切削温度、刀具磨损等方面的机理。
In this paper, wear properties and mechanism of metal multilayer films were studied.
研究了金属多层膜的磨损特性与磨损机理。
In the high wearing area of the big particle, wear behavior includes many kinds of mechanism, and the superficial microstructure is also very complicated.
在大颗粒的高磨损区，磨损行为包含多种机理，表面的磨损形貌也很复杂。
The wear of the roll surface has been analyzed in the view of wear mechanism.
从磨损机理的角度分析了造成型钢轧辊辊面磨损的原因；
The wear rate initially increases and then decreases with sliding distance increasing in all tested materials, wear mechanism during dry sliding process is oxidation wear and adhesive wear.
干滑动摩擦磨损率随磨损滑移距离的增加先增加而后逐渐降低，磨损机制主要为粘着磨损和氧化磨损。
The ratchet wheel and pawl of automatic knife feed mechanism in PASSIM80 cigarette maker had to be replaced frequently because of serious wear.
针对PASSIM 80卷烟机刀头自动进刀机构存在进刀棘轮、棘爪磨损较快，更换频繁等问题，对该机构进行了改进。
Based on the experiment research and finite element analysis, the fretting wear mechanism and the influence factors on fatigue life are made clear in this paper.
在数值模拟结果与试验结果基础上，总结分析了微动疲劳损伤机理及寿命的影响因素及原因。
In calf serum medium, the wear mechanism of fretting is mainly adhesive wear, fatigue wear and the weakening effect of solution molecules on the bone cement matrix under stress.
骨水泥在小牛血清介质中微动磨损的损伤机制主要为黏着磨损和疲劳磨损，溶液分子在应力作用下对骨水泥基体有削弱作用。
The wear mechanism of C/C composites in braking have been inquired , they were abrasion, delamination of part of the friction film, oxidation wear and adhesion wear.
探讨了C／C复合材料的磨损机理，主要有磨粒磨损、剥层磨损、氧化磨损、粘着磨损。
In the paper, analysis of wear mechanism of circular diamond saw blades with several typical segment structures being widely used in stone processing area.
本文对目前石材加工领域广泛使用的具有几种典型节块结构的金刚石圆锯片的磨损机理进行了一些分析。
However, the dynamic performance of the mechanism would get worse with consequent wear if backlash exists in the drive.
但是，当机构中存在侧隙时，其动态特性显著变坏并导致振动、噪音及磨损的加剧。
The structure, wear resistance and wear mechanism of laser quenched layer on the groove surface of the piston head were studied in this paper.
研究了大型柴油机活塞项环槽激光淬火层的组织、耐磨性和磨损机理。
The mechanism of wear resistance improvement after oxidation is analyzed in detail.
分析了合金氧化后耐磨损性能的提高机制。
The ginger like Sorbite forming mechanism and the high wear resistance of ginger like carbide cutter blade were studied in this paper.
本文从空间形貌上说明姜块状碳化物的形成机制，并从微观机理分析姜块状碳化物提高刀片耐磨性的原因。
In this paper, the failure of pin punch was analyzed and optimized based on FEA and PVD, according to failure mechanism of fracture and wear of pin punch.
本文主要利用FEA及PVD技术，针对细小凸模的断裂和磨损两种失效形式，进行失效分析与优化。
In addition, the effects of environmental temperature and humidity on the wear mechanism of FPLC need to be further studied.
此外，关于温度、湿度对改性PTFE三层复合材料磨损机理的影响还有待深入研究。
The wear mechanism is fatigue flake when in little amplitude, while abrasive in bigger amplitude.
小振幅时的磨损机制符合疲劳脱层理论，而大振幅时则主要是磨粒磨损机制。
Based on this study, a adhesive transfer mechanism is proposed for the formation of transferred films during sliding wear in this paper.
在这一研究的基础上，本文对滑动摩擦转移膜的形成提出粘着转移机制。
The phenomenon mechanism appeared has been explained in the paper, and a method of making use of these signal characteristics for monitoring and predicting tool wear states is put forward.
文中解释了这种现象发生的机理，并提出利用该特性进行钻头磨损监测和预报的方法。
The tool wear mechanism is studied by using a digital microscope to observe the topography of the diamond tool in RUD of advanced ceramics.
通过使用数字显微镜跟踪观察旋转超声钻削过程中金刚石工具表面形貌变化，研究了旋转超声钻削先进陶瓷过程中的工具磨损机理。
The characteristic about wearing of frictional pairs of cam-jib in engine was analyzed. Based on discussing the mechanism of wearing, the particular measures of wear-reducing were presented.
介绍了发动机凸轮挺杆副的磨损特点，分析其磨损机理，提出减少磨损的措施。
The characteristics and mechanism of wear and fracture of the tap have been researched, and a method to improve the structure of cold forming tap was also proposed in this paper.
在对挤压丝锥的磨损、破损特征和机理进行研究的基础上，提出了改进挤压丝锥结构的方法。
In the case of UMT, as cutting process has occurred in the local area adjacent to the tool tip, the wear mechanism must differentiate with macroscopic world.
在超精密加工中，切削过程仅仅发生在刀尖局部微观区域，刀具的磨损规律必然与宏观条件下有很大不同。
The research of wear mechanism and wear-resistant materials of jaw plates used in jaw crusher has been reviewed in this paper. An advice on material selection of jaw plates is proposed.
综述了近年来颚板的磨损机理及材质的研究和应用情况，提出了选择颚板材质的建议。
The research of wear mechanism and wear-resistant materials of jaw plates used in jaw crusher has been reviewed in this paper. An advice on material selection of jaw plates is proposed.
综述了近年来颚板的磨损机理及材质的研究和应用情况，提出了选择颚板材质的建议。
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