磨损

The tribological property of water lubricated plastic bearing was studied in particular, and wear rate of bearing was mensurated by the way of volumeter.

重点研究了水润滑塑料轴承的摩擦学特性，用体积法测定出了轴承的磨损率，通过实验研究了摩擦因数、磨损率与轴承结构和工况之间的关系，对实验数据进行了拟合，并对润滑机理进行了分析。

If a component survived the ''''infant mortality period,'''' it would follow a predetermined ''''bath tub curve,'''' until it reached a wear-out point, which was when the parts were serviced.

飞机附件先是经过初装使用阶段，然后即按照一个预定的"浴盆曲线"到达它的磨损点之后换掉，其实在到达磨损点时部件仍然可用。

An AlTiN ceramic coating was deposited on the surface of biomedical Ti6Al4V alloy by High Ionic Pulse technology. The properties of biofriction and wear of AlTiN coating in simulated serum lubrication at 37℃ were investigated and compared with that of non-coating Ti6Al4V alloy.

采用高度离子化脉冲工艺在医用钛合金Ti6Al4V表面制备AlTiN涂层；在摩擦磨损试验机上测试了涂层在37℃的模拟人体生理血清液润滑条件下的摩擦磨损性能，并与之和未经涂层的Ti6Al4V合金作比较。

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)。

Some suggestions on how to improve the microstructures and performances of TiCN coatings are also proposed. coating,titanium carbonitride,preparation technology

与TiC相比，TiCN的塑性、耐磨性更优异；与Ti N相比，TiCN有更好的抗粘着磨损和抗磨粒磨损性能、更低的摩擦因数，可以进

The problem of polyethylene wear was not recognized in many early porous cementless designs, and some of these hae failed prematurely because of excessie wear.

在早期多孔表面无骨水泥假体设计中，有许多未认识到聚乙烯磨损的问题，其中一些因过度磨损而过早失败。

The major etiology of cubital tunnel syndrome is chronic injury with sustained compression of ulnar nerve around elbow joint.

结论］肘部的创伤及慢性劳损可以导致肘管弓状韧带出现肥厚增生，引起尺神经卡压磨损，这是肘管综合征最常见的病因；其他病因还包括慢性骨关节炎，占位病变和先天异常；尺神经可被机械性卡压和磨损，出现慢性缺血缺氧，导致肘管综合征的发生；详细的体格检查和术前的肌电图检查是诊断肘管综合征的主要手段，在诊断时应注意该病与其他部位迟发性尺神经麻痹的鉴别。

On the test machine of glue,using three groups of 45 steel-40Cr disc test examples with clifferent hardness, the gear abrasion simulant experiment has been done about addendum, dedendum dividing point of single and double engagemenf area.

用三组不同硬度的45钢-40Cr的圆盘试件，在圆盘滚子实验机上，对渐开线齿轮的齿顶、齿根、单双齿啮合分界点四点进行齿轮磨损的模拟实验。分析了材料副的硬度和配对试件的绝对滑差速度对磨损的影响。

It can be mixed with various greases. Under the action of high temperature short time and high pressure produced by the friction, nanometer ceramic power will have cementation and densify the worn metal su*****ce layer, and form a layer of cermet, thus, restore the worn parts to optimum fit clearance and lubrication status.

不含毒素、重金属和强化物，可与各类油脂混合，在摩擦产生的瞬间高温、高压力的作用下，纳米陶瓷粉体在磨损金属表层渗镀和致密，生成一层金属陶瓷，从而使磨损部件恢复到最佳的配合间隙和润滑状态。

Molybdenum disilicide ; abrasive wear ; wear mechanism

二硅化钼；磨粒磨损；磨损机理

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。