查询词典 friction coefficient

At 25℃, the coefficient of friction of chrysotile gouge is very low (μ≈0.2～0.25), while lizardite and antigorite gouge are much stronger, with μ≈0.39 and 0.45, respectively.

在室温下，纤蛇纹石具有很低的摩擦系数（0.2～0.25），而利蛇纹石和叶蛇纹石的摩擦系数较高，分别为0.39和0.45左右。

To prevent serious skidding and obtain maximum friction coefficient, a design of intelligent aircraft antiskid brake system is presented.

以某型飞机刹车系统为研究对象，为了使该系统以最佳滑移率工作，防止陷入深度打滑和获得最大的刹车结合系数，提出了一种智能飞机防滑刹车系统的设计方案，制定出刹车控制规律并对整个刹车系统进行了仿真。

Product characteristics : 1, excellent heat resistance : can adapt to the use of power lines due process overload and short circuit of the high temperature; 2, excellent electrical properties : material for the performance of their higher intensity and volume resistivity of insulation, security is good; 3. excellent corrosion resistance and anti-aging properties : apply to the soil and working environment, long life; 4. excellent flame retardance : difficult combustion; 5, smooth wall formation, the friction coefficient, good wear resistance : in the installation process can greatly reduce the damage to power lines, improve work efficiency; with the traditional asbestos cement pipes, the The product is light weight, good flexibility, earthquake-resistant and differential settlement, and not at the construction site encapsulation pouring concrete; Transport construction is simple, low cost, can greatly shorten the construction period.

产品特点： 1、优良的耐热性能：能适应电力电缆使用过程因过载短路而产生的高温； 2、优良的电气性能：材料自身表现为较高绝缘强度和体积电阻率，安全性好； 3、优异的耐腐蚀性能和抗老化性能：适用于各种土壤和工作环境，使用寿命长； 4、优良的阻燃性能：不易燃烧； 5、内壁光滑平整、摩擦系数小，耐磨性能好：在敷设过程中可大大降低对电缆的损害，提高工作效率；与传统的石棉水泥管相比，产品的重量轻、柔性好、抗震性及抗不均匀沉降好，无须在施工现场包封浇混凝土；运输施工简便，费用低，可大大缩短工期。

Excellent flame retardance : difficult combustion; 5, smooth wall formation, the friction coefficient, good wear resistance : in the installation process can greatly reduce the damage to power lines, improve work efficiency; with the traditional asbestos cement pipes, the The product is light weight, good flexibility, earthquake-resistant and differential settlement, and not at the construction site encapsulation pouring concrete; Transport construction is simple, low cost, can greatly shorten the construction period.

优异的耐腐蚀性能和抗老化性能：适用于各种土壤和工作环境，使用寿命长

The feasibility of neural network application to asphalt concrete pavement performance forecast is set forth. Three main environmental factors-traffic, rainfall, temperature, which can lead to the direct change of pavement performance are used as the input layer of neural network. The performance indexes of asphaltum concrete pavement, i.e. dilapidation rate, smoothness, deflection, friction coefficient are used as output layer. The relation between environment factor and pavement performance is acquired by introducing the module of BP Neural Network in MATLAB.

阐述了应用BP神经网络进行沥青混凝土路面使用性能预测的可行性，以环境因素，即交通量、降雨量、温度等3个直接使路面性能发生变化的主要因素作为BP神经网络的输入层，以沥青混凝土路面的破损率、平整度、弯沉值、摩擦系数等4项性能指标作为输出层，采用MATLAB语言中的BP神经网络模块进行自学习，得出环境因素与路面使用性能之间的关系。

Three main environmental factors——traffic,rainfall,temperature,which can lead to the direct change of pavement performance are used as the input layer of neural network.The performance indexes of asphaltum concrete pavement,i.e.dilapidation rate,smoothness,deflection,friction coefficient are used as output layer.The relation between environment factor and pavement performance is acquired by introducing the module of BP Neural Network in MATLAB.

阐述了应用BP神经网络进行沥青混凝土路面使用性能预测的可行性，以环境因素，即交通量、降雨量、温度等3个直接使路面性能发生变化的主要因素作为BP神经网络的输入层，以沥青混凝土路面的破损率、平整度、弯沉值、摩擦系数等4项性能指标作为输出层，采用MATLAB语言中的BP神经网络模块进行自学习，得出环境因素与路面使用性能之间的关系。

Furthermore, the larger the atomic lattice, the smaller the sliding friction coefficient is.

滑动摩擦系数随晶格常数的增加而降低，而当晶格常数较大时，其变化对滑动摩擦系数影响较小。

ABSTRACT Based on theoretical analysis of axial compression of ring-shape specimen between two flat dies by an upper-bound technique,it is possible to carry out the measurement of both the friction coefficient of lubricant and the basic flow stress of the ring material under particular temperature and strain rate.

摘 要 根据圆环压缩的连续速度场上限定理的理论分析，通过圆环试样压缩前后的几何尺寸的变化，能测量润滑剂的摩擦因数和圆环材料的流变应力。

Boron carbide,friction coefficient,wear rate,tribochemical reaction

碳化硼-碳化硼摩擦副的摩擦磨损特性研究。

According to this point it has good ability to absorb neutron and resist eradiation.Because of their high hardness and strength, excellent wear and corrosion, low density, low friction coefficient good self-lubricate and high temperature properties both silicon carbide and boron carbide components have been widely used in many industries.

由于碳化硼中的B14中子缺失，它还具有较大的热中子俘获截面，具有极好的中子吸收和抗辐射性能，由于其具有耐高温，耐酸碱腐蚀，高强度，高化学稳定性，比重轻，半导体等特点而成为众多行业的首选材料。

He tendered his resignation to the Prime Minister.

他向首相递了辞呈。不适合

International economy and trade,Nanking 210044

国际经济与贸易，南京 210044