查询词典 wear a beard

Compared with the graphite, the coefficients of friction of the RL-C/C are lower under the same load of about 0.08-0.12, and the increasing range of the volume losses are still lower than those of the graphite. Compared with the SL pyrocarbon material, the COF and the volume loss of the SL-C/C are about 0.02-0.05 and 0.2 mm^3, lower than those under the same load. The COFs of most RL-C/C and SL-C/C specimens remain stable or decrease slightly with time, while those of the graphite and pyrocarbon specimens increase. The thickness of the integrated friction film of the RL-C/C decreases with load, but the wear surface of the SL-C/C is rough. Tough the wear surface of the graphite is integrated, the serious abrasive wear make the debris move easily and accumulate on the edge of the wear trace to form a restacked morphology. On the wear surface of the pyrocarbon material, some loosed debris, circular worn holes and flake worn out pyrocarbon has been found.

结果表明：PAN炭纤维改善C/C复合材料的摩擦磨损行为；在实验载荷范围内，与高强度石墨材料相比，含RL炭C/C复合材料的摩擦因数降低0.08~0.12；体积磨损量增幅降低；与热解炭试样相比，具有SL炭C/C复合材料的摩擦因数降低0.02~0.05，体积磨损量低0.2立方公厘左右；随着时间的延长，大部分C/C复合材料的摩擦因数基本相对稳定或呈小幅下降，而石墨、热解炭块的摩擦因数均呈不同幅度的上升；具有RL炭的C/C复合材料摩擦表面膜厚度随载荷增加而降低，具有SL炭的C/C复合材料摩擦表面较粗糙；高强石墨能形成较完整致密的摩擦膜，但磨粒磨损严重，磨屑易在摩擦膜边缘形成层状堆积；热解炭块摩擦表面磨屑堆积松散，有较多的孔洞以及热解炭层整体剥落的形貌。

Compared with the graphite, the coefficients of friction of the RL-C/C are lower under the same load of about 0.080.12, and the increasing range of the volume losses are still lower than those of the graphite. Compared with the SL pyrocarbon material, the COF and the volume loss of the SL-C/C are about 0.020.05 and 0.2 mm3, lower than those under the same load. The COFs of most RL-C/C and SL-C/C specimens remain stable or decrease slightly with time, while those of the graphite and pyrocarbon specimens increase. The thickness of the integrated friction film of the RL-C/C decreases with load, but the wear surface of the SL-C/C is rough. Tough the wear surface of the graphite is integrated, the serious abrasive wear make the debris move easily and accumulate on the edge of the wear trace to form a restacked morphology. On the wear surface of the pyrocarbon material, some loosed debris, circular worn holes and flake worn out pyrocarbon has been found.

结果表明：PAN炭纤维改善C/C复合材料的摩擦磨损行为；在实验载荷范围内，与高强度石墨材料相比，含RL炭C/C复合材料的摩擦因数降低0.08~0.12；体积磨损量增幅降低；与热解炭试样相比，具有SL炭C/C复合材料的摩擦因数降低0.02~0.05，体积磨损量低0.2 mm3左右；随着时间的延长，大部分C/C复合材料的摩擦因数基本相对稳定或呈小幅下降，而石墨、热解炭块的摩擦因数均呈不同幅度的上升；具有RL炭的C/C复合材料摩擦表面膜厚度随载荷增加而降低，具有SL炭的C/C复合材料摩擦表面较粗糙；高强石墨能形成较完整致密的摩擦膜，但磨粒磨损严重，磨屑易在摩擦膜边缘形成层状堆积；热解炭块摩擦表面磨屑堆积松散，有较多的孔洞以及热解炭层整体剥落的形貌。

The main identifying characters of wear particle on the ferrogram such as dimension,distribution,quality,component and form of the wear particle were generalized for the three friction couples of gear case including gear,bearing and sliding contact which is in the different phases of running-in wear,normal wear and abnormal wear and in the different degrees of overload,over-speed and fatigue.

介绍了铁谱分析的原理、样品的制备方法和铁谱分析的步骤，概括了齿轮箱齿轮、滚动轴承、滑动接触3种主要摩擦副在磨合磨损、正常磨损、异常磨损3个阶段的磨粒的主要识别特征，包括尺寸、尺寸分布、数量、成分和形貌等。

Wear and corrosion involve mechanical and electrochemical mechanisms, and the combined action of these mechanisms often result in significant mutual reinforcement. To measure the effect on wear-corrosion resistance of the chemical and abrasion wear separately at the same time, wear-corrosion synergism rate is selected to indicate the nature and degree of the chemical and abrasion wear.

腐蚀磨损是同时涉及力学因素和电化学因素的复杂的材料的流失过程，通常条件下，腐蚀磨损不是纯磨损和纯腐蚀的简单叠加，还有两者间的协同作用，为定量描述腐蚀与磨损的促进程度、进一步完善腐蚀磨损机理，本文利用腐蚀磨损协同作用率值的大小来分析腐蚀和磨损的交互作用程度，结果表明：本文制备的镀层，在5％H_2SO_4溶液中腐蚀磨损时，机械磨损是造成镀层表面材料流失的主要原因，腐蚀和磨损的协同作用为次要因素。

In this paper, the sorting of wear, the mechanics of wear particle formed and the characteristics of wear particles are introduced, and morphology characteristics parameter of wear particle are determined, which is particle brim digital feature. Based on image characters, after pre-process, section and extracting of contour parameter of wear particle using image process technique, four shape character parameters are extracted by fourier series expansion. After analyzing fundamental principle and shortcomings of neural network, current BP algorithm is improved in output optimization, network linearization implication optimization and adding momentum, and then astringe speed of BP algorithm.

本文介绍了磨损的分类以及磨粒的生成机理、磨粒的形态特征，应用摩擦学系统分析的观点，确定磨粒边缘数字特征为磨粒的识别特征参数；根据磨粒图像的特征，利用计算机图像处理技术对磨粒图像进行预处理、分割、轮廓参数的提取，采用傅立叶级数展开式提取磨粒四个形状特征参数：圆形度、散射度、凹度、细长度；针对 BP(Back-Propagation)神经网络收敛速度慢的特点，对现行的 BP 算法进行改进，并通过实验验证改进后的网络收敛速度快；研究设计了磨粒图像采集系统；利用 BP 算法建立磨损磨粒自动识别算法模型 AWPRM(Auto Wear Particle Recognition Model)。

Product fault ink UN-uniform UN-uniform ink products were:(1) water and ink, ink and wash painting the rubber roll version of wear, spindle bearing wear, cots epiderm aging decline, ink, etc;(2) series water roll of layer debranning, cylindricity wear, a thin layer of shoulderpieces for intergradle monlchamus, a product of long a portion of the Ribbon, resulting in a roller 跞 movement oscillating anisotropism;(3) support by Edition of water, rollers, the cylinder, swayig stand, wear, resulting in version tiaodong Cot by cause pressure by version is unstable, produce ink imbalance, ink, ink plate, staves, relying on the old version (students'overloaded) version of COTS and pressure;(4) the water roll chemiluminscent set of aging or poor quality water decline caused by transmission;(5) does not have a regular check of the drum-and-ink roller and version by version-and-ink roller and pressures;(6) if the drum gear wear, and gear spacing is the same as the regular ink "" gear.

二、产物墨色不平均障碍产物墨色不平均的来因有：（1）传水、传墨、匀墨和靠版水墨各橡胶辊的圆柱度磨损超不差，拆轴承的轴脚磨损，胶辊不内脏嫩化，传墨本领回升等；（2）串水辊度层脱皮，圆柱度磨损超不差，暗地有薄积墨层，两脚长出局部有积墨带，变不败滚子跞不静串墨不不平衡；（3）撑持靠版水、墨辊的锁脚，摆不静支架，磨损惨重，变不败胶辊靠版时跳不静致使靠版不抬辛不安定，爆发水墨不不平衡，呈现墨色不不平衡、干版、水墨杠、嫩版等本体；（4）水辊绒套嫩化或质度不差变不败传水本领回升；（5）操纵按期校核各水墨辊及版滚筒与靠版水墨辊的不抬辛；（6）若滚筒传不静齿轮磨损超不差，呈现与齿轮间距不异的有次序的&齿轮墨杠&。不一、套印障碍 1。

EDAX and talysurf. There were four wear regimes for KRF/GCI, during the starting friction period abrasion was dominant, when the process of the formation and break of transfer layers was balanced the main wear mechanisms were adhesion and fatigue, mild melt wear was found at higher temperature. For KRF/MMC, the dominant wear mechanisms were ploughing and microcuting during the running-in, when transfer layer formed, the film-film adhesion at the interface became dominant and mild melt wear occurred also at high temperature.

对于KRF/GCI，在摩擦的起始阶段主要是二体磨粒磨损，当表面转移膜的形成与破坏形成动态平衡时，粘着磨损和疲劳磨损是主要磨损机理，摩擦表面温度较高时，产生严重的粘着磨损和轻微的熔融磨损；而KRF/MMC在跑合过程中，SiCp对较软材料的犁削、微切削是主要摩擦磨损机理，转移膜形成后，表面的膜—膜粘着则为主要摩擦磨损机理，高温下也会发生轻微的熔融。

The main tool wear styles are crater wear , boundary wear and groove wear under different cutting conditions when turning 0 , while the main breakage styles are desquamate of tool rake face and tool flank .

在不同切削条件下车削加工0Cr18Ni9不锈耐热钢的刀具磨损形式主要是月牙洼磨损和后刀面磨损及边界磨损和沟纹磨损；主要的破损形式是前刀面剥离和主后刀面剥离。

The main tool wear styles are crater wear , boundary wear and groove wear under different cutting conditions when turning 0Cr18Ni9 , while the main breakage styles are desquamate of tool rake face and tool flank .

在不同切削条件下车削加工0Cr18Ni9不锈耐热钢的刀具磨损形式主要是月牙洼磨损和后刀面磨损及边界磨损和沟纹磨损；主要的破损形式是前刀面剥离和主后刀面剥离。

Increasing quenching temperature can improve the impact toughness and wear property, and the optimal impact toughness (40 J/cm^2) and wear performance of the tested steel can be obtaind by quenching at 1100℃ and tempering at 250℃ SEM analysis finds that the main wear mechanism is cutting wear and fillister under the low stress grinding abrasion.

提高淬火温度有利于冲击韧度和耐磨性的提高，经1100℃淬火＋250℃回火热处理，材料可获得最佳的冲击韧度(40J/平方公分)及耐磨性。用SEM分析发现，在该低应力磨料磨损工况下，实验钢的磨损形式主要有显微切削和凿坑。

These rules reflect some inherent feature of self and nonself, and they are the basic detection criterion of GECISM.

这些规则反映了"自我"和"非我"的内在特征，是GECISM进行"非我"检测的判据。

Until today, the media from China and the outside world still uses the term "Post 89". Regardless to whether it is for commercial gimmick or convenience, everybody still remember "Post 89", a term which carries a strong Cantonese accent.

时至今日，国内外艺术媒体还是在沿用&后八九&这个称谓，不管当初是为了商业噱头还是容易上口好记，反正大家现在是记住了&后八九&这个广东口音很重的词。