性摩擦

The result showed that the keratin solution can reduce the felting property of wool fabric without damage.

利用制备的角蛋白粗溶液处理羊毛织物，有效地减少了羊毛表面的定向摩擦效应和织物的毡缩性，并且对羊毛没有损伤。

High Quality Components: anti-friction bearings fsmooth operation with lower horsepower; front rear bearings fprecise cranksLSEft alignment long sLSEft life; fully enclosed, all metal fan-blade guard; fly wheel precision-balanced fan-bladed fexcellent cooling capacity; heavy duty, sLSEft-driven, gear-type oil pump fgenerous lubrication to critical wear areas flonger pump life; stainless steel, disc-in-plate valves flong wear excellent heat resistance dissipation; valve housings nickel-plated fcorrosion resistance.

高质量部件：低摩擦轴承提供平滑的运行并降低功耗。前后轴承提供精确的曲轴对中，延长曲轴寿命。全封闭风扇防护罩。飞轮经过精确平衡并带有风扇叶片，提供极好的冷却能力。重载型曲轴驱动齿轮式油泵为磨损区域提供充足的润滑。不锈钢阀片耐磨损，散热性好。阀座采用镀镍处理，耐腐蚀。

Then, this article details of Shell automotive friction clutch of die design, mainly from parts of the process analysis, process programs, press select and mold the structure of design aspects.

接着，本文将具体介绍汽车摩擦离合器壳的模具设计，主要是从零件的工艺性分析，工艺方案，压力机选择和模具的结构设计等方面着手。

Octyl mercaptan may exist in the base oil or continue to decompose to volatile low molecular mercaptan or H 2S.

辛硫醇有可能存在于基础油中，或在摩擦热的作用下继续分解生成挥发性的低分子硫醇或硫化氢挥发掉

Characteristics can not fly; legs was born in the most lower body, it was upright posture; toes webbed; plantigrade sex; forelimbs into flippers; feathers short, in order to reduce friction and turbulence; retention layer of air between the feathers for insulation .

特征为不能飞翔；脚生于身体最下部，故呈直立姿势；趾间有蹼；跖行性；前肢成鳍状；羽毛短，以减少摩擦和湍流；羽毛间存留一层空气，用以绝热。

Talc has a platy structure with hydrophobic surfaces. There is weak cohesion between the crystal lattices within talc particles; hence it possesses the advantages of a very low frictional coefficient, softness, and low abrasiveness.

滑石粉为片状结构，具有表面疏水性、在滑石粉颗粒中，晶格层间的内聚力较低、具非常低的摩擦系数、柔软性、低磨擦性等优点。

Finally,a formulation of frictional contact problem in BEM and parametriclinear complementary form is presented.

最后，本文还对用边界元法结合线性互补问题求解摩擦接触问题进行了探讨性的研究。

Wear degree decreases, and the wear particle distribution curves become protrusive and precipitous gradually in the initial stage.

通过分析铜合金销与碳钢盘在干摩擦条件下相互对磨所产生的磨粒群和销试样磨损量，发现磨粒的累积分布和微分分布特性随磨损时间的变化而变化：在磨损开始阶段，磨损程度逐渐减小，磨粒群分布曲线由平缓变得逐渐凸、陡；达到磨损平衡状态后，磨损率达到最小，磨粒群微分布曲线的幅值达到最大，横向宽度达到最小；随着销与盘间互适性变弱，磨损程度增大，磨粒分布曲线变得越来越平缓，横向宽度逐渐增大；磨粒分布曲线随磨损时间的变化规律与磨损率随磨损时间的变化规律有明显的对应关系，可为科学诊断和预测摩擦学系统状态提供有用信息。

Based on the theory of rheology, in the test, many factors were concerned, such as cement paste quantitates, water binder ratio and sand proportion. The relationship of these factors and slump, vibration viscosity factor, yield stress and concrete surface defects was discussed. It can provide theoretical basis for analysing concrete surface defects.

根据流变学观点，本文在试验中考虑水泥浆量、水灰比及砂率对新拌混凝土坍落度、振动粘度系数及摩擦系数的影响，讨论了混凝土工作性与混凝土表面缺陷的关系，为分析混凝土表面缺陷成因提供理论基础。

You're unembarrassed by your shoe size emblazoned on the back of each heel, undistracted by all the bright silk shirts, the skirl of rolling balls on shellacked and waxed lumber, the soft jets of air to dry your fingers so they slide like sex in the customized holes, the little numbers glowing everywhere. You sip the air like pilsner, size up the quantum physics of the lane, aim straight into the vacuum at the edge of your life, distant dead end of the imaginary alley where all of us stand cringing in a wedge.

你不为 刻在每只鞋底的尺码感到尴尬；你不为那些发亮的丝的衬衣分神保龄球在手摩擦蜡和虫胶地板滚动声音尖锐喷气使你的指头干爽好让它们有如性爱般滑进那定做的球孔细小的数目字四处闪呀闪你呼吸空气像啜饮比尔森啤酒你计算保龄球巷的量子力你瞄准前面的真空是你生命的边缘远处你幻想的小巷是死胡同我们所有人一一站着排成楔形

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。