摩擦

The worn surface of the sulfurized steel disc was observed with a scanning electron microscope, while the chemical states and phase structure of carbon-nitrided carbon steel and of the sulfurized one were examined by means of X-ray photoelectron spectroscopy and X-ray diffraction.

采用MPX-200型摩擦磨损试验机考察了碳氮共渗及室温电解硫化处理后的20#碳钢的摩擦学性能，探讨了在干摩擦条件下载荷、渗硫处理时间和滑动摩擦时间对渗硫层摩擦系数的影响。

The worn surface of the sulfurized steel disc was observed with a scanning electron microscope, while the chemical states and phase structure of carbon nitrided carbon steel and of the sulfurized one were examined by means of X ray photoelectron spectroscopy and X ray diffraction.

采用MPX-200型摩擦摩损试验机考察了碳氮共渗及室温电解硫化处理后20^#碳钢的摩擦学性能，探讨了在干摩擦条件下载荷、渗硫处理时间和滑动摩擦时间对渗硫层摩擦系数的影响。

While in high temperature area of supercooled liquid region, the friction factor decreases

按照现代摩擦理论对非晶合金在过冷液相区内成形的摩擦机理进行了分析，认为黏着是摩擦的主导因素。

At present, the company mainly produces clutch friction plate motorcycle, engineering machinery brakes, motor friction films, mower, broken sticks machine, automobile air conditioning compressor, electric hoist, etc. special friction material.

目前，公司主要生产摩托车离合器摩擦片，工程机械用刹车片、电机摩擦片，割草机、碎枝机、汽车空调压缩机、电动葫芦机等特种摩擦材料。

The experimental results showed that the frictional factor periodically fluctuated with the time variable, and its amplitude was obviously affected by the change of Reynolds number and pipe diameters. The amplitude and average value of frictional factor both decreased with the increase of Re number, but the bigger the tube diameter was, the larger the amplitude of frictional factor was.

经实验研究发现，试验段内的摩擦阻力系数随时间变化有明显的周期性，雷诺数增加导致摩擦阻力系数的波动幅值降低、平均值减小，管径越粗使得摩擦阻力系数边的波动幅度越大。

As the results, the composites show better wear resistance and lower friction coefficient than those of the matrix coarse-grained materials.

结果表明：纳米表面复合材料具有优良的摩擦磨损特性，摩擦系数稳定低于基体粗晶材料的摩擦系数。

Its friction type clutch working principle is when power transmits the export and input end design on route have is active and driven move two pieces of friction plate, the conduct that passes through the combination of friction plate to control power and cut off.

摩擦式离合器其工作原理是在动力传递路线上的输出和输入端设计有主动和从动两块摩擦盘，通过摩擦盘的结合来控制动力的传导和切断。

The standard workpiece of the ring compression test by Lee and Altan will be used in this report. The specimen will first annealed to eliminate the internal stress and then through different ways of machining to produce different roughness of surface and different direction of machining marks. The ring compression test with various lubricants and dry friction were carried out at room temperature. The experiment results were drawn on the diagram of friction factor developed by Lee and Altan to compare the influence of the roughness of surface to plastic forming with or without lubricants.

实验将依Lee and Altan压环试验所用之标准压环试片进行，实验试片先经退火处理消除内应力，再将试片以各种不同之加工方式制作成具有不同的表面粗糙度，与不同刀痕方向之摩擦面，再於常温环境下实施乾摩擦与添加不同润滑剂之压环试验，将实验结果所得之数据绘制於Lee and Altan之定剪摩擦系数图中，以比较其不同表面粗糙度对塑性成形之影响，同时也说明在各种不同表面粗糙度下添加各种润滑剂对成形之影响。

A potential failure phase with a minimum safety factor cannot simply be determined by comparison of the values of inner friction angles and cohesions for a multilayer liner.

具有最小安全系数的潜在滑动面并不能仅仅通过比较衬垫中不同界面的黏聚力和内摩擦角来确定，随着衬垫界面摩擦角和黏结力的增加，FSave都在逐渐增大，衬垫界面黏结力对填埋场的整体稳定性影响较大，尤其是对于摩擦角较小、黏结力较大的情况。

The paper is based on wave resistance, which is one of bases in ships total resistance, is considered the friction resistance coefficient of the equal fiat panel, replacing the friction resistance with "1957 international ship mold experiment pond converting formula of the solid ship- ship mold " to set up the total resistance, and is worked to use the model of fore part, half part, and whole part of ship for the optimization.

本文基于兴波阻力(中、高速船舶的兴波阻力在船舶总阻力中占有相当的比例)数值计算：考虑相当平板摩擦阻力系数，将摩擦阻力用&1957年国际船模试验池实船-船模换算公式&简化来构建摩擦阻力和兴波阻力的总阻力公式；采用最优化计算方法分别对船首部、前半体及整体船型进行理论优化设计的探讨。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。