查询词典 friction

Now days,fluorinated materials are widely used because of their low surface energy,chemical inertness,thermal stability,and low friction coefficient.

含氟聚合物材料具有极低的表面能、良好的拒水拒油和自清洁性、优异的耐热性能和化学稳定性等，在织物整理、功能涂层、航空航天、生物医用以及微电子等领域已得到广泛的应用。

In this paper,replacing options of inhaul cable of multi-rope friction hoist used for a tower medium deep shaft are discussed.

本文以实例形式对塔式中深井多绳摩擦提升机首绳更换方案进行了探讨，特别是对施工过程中几个决定安全和质量的重点环节和细节作了特别说明，供借鉴。

But, there are some insurmountability problems in processes of thermoplastics application, for example, they are sensitive to temperature elevation caused by friction heat; their strength, deformation and creep are all affected by temperature.

但是，在实际使用过程中，UHMWPE等热塑性工程塑料的摩擦学性能还存在一些难以克服的不足，最具代表性的问题是对摩擦温升很敏感，其材料强度，变形与蠕变性能都受到温度的影响。

Influence of simulation parameters on simulation precision of the springback, such as elements type, material types, constitutive equations, integral point selections, contact conditions, friction rules, and like that, has been analyzed.

分析总结了数值模拟中模拟参数（有限无算法、单元类型、材料模型、本构方程、积分点选取、接触和摩擦法则等）对回弹模拟精度的影响。

Because the workpiece is in dynamic balance, the resultant moment acting on it should be zero. Introducing the moment from lapping tool and press head a moving differential equation is built. In this equation only workpiece rotating speed is unknown. It means that workpiece rotating speed can be got by this equation. Since there is a transcendental function in integral function of the equation an analytic result can not be got, only digital result can be got by a computer. Thus a change rule of workpiece rotating speed with lapping parameters is known, e.g. the radius of press disc ball socket, radius of press head ball, the distance between the workpiece rotating axis and lapping tool rotating axis, workpiece radius, modulus of elasticity of the press head and press disc, friction coefficients between the lapping tool and workpiece, and between the head and disc, pressure between the lapping tool and workpiece and pressure between the press head and press disc.

因工件处于动态平衡状态，其上所受到的来自于磨具和压头的力矩应相等，将二力矩表达式联立，建立工件运动微分方程，该方程中只有工件的旋转角速度是未知量，因此可以求出工件旋转角速度，但该方程积分式中含有超越函数，得不出解析解，只能通过计算机求出数值解，得出工件旋转角速度随各研磨参数的变化规律，如压盖球座半径、压头的球头半径、工件回转中心相对磨具回转中心的偏心距、工件半径、压头和压盖材料的弹性模量、磨具与工件间的摩擦系数、压头压盖间的摩擦系数、磨具与工件间的压强、压头压盖间的压力等。

He reminded the Asian country should be prepared for the intensification of trade friction.

他提醒亚洲国家，应做好准备应对贸易摩擦的加剧。

The transfer distance is shortened, friction is reduced, and interferer between the installation of the instruments and the model making is also reduced obviously.

将内部位移的传递模式由直线传递改进为曲线传递，由刚性传递改进为刚柔结合传递，大大缩短了传递距离，减少了传递摩擦和滞后效应。

The slope stability question is influenced by many kinds of inherent factors, for instance geological structure, intensity of rock body, development state of joint and crack, cohesive force of the rock, interior angle of friction, groundwater, etc., these objective factors reflect generally their sizes with some quantitative parameter indexes in the past.

边坡稳定问题受多种内在因素影响，如地质构造、岩体强度、节理裂隙发育状况、岩石的内聚力、内摩擦角、地下水等，这些客观因素过去一般用某些定量参数指标来反映其大小。

The soil cutting experiment indicates that the interior friction angle and the shear intensity of soil is reduced;and the maximum principal stress is decreased due to the vibration load;it induces the decrease of digging resistance.

从理论上研究了振动掘削岩土的减阻机理，土壤剪切试验结果表明，振动载荷能够使土壤的内摩擦角变小、抗剪强度下降、最大主应力值减小，从而导致挖掘阻力降低；对土壤在静态载荷和振动载荷作用下的失效过程进行了对比仿真实验研究，可知土壤在振动加载的条件下强度显著下降，并提前于相同条件的静态加载而破坏，同时跟踪X方向的载荷发现，振动掘削最大掘削阻力可降低50%。

Considering interleaf friction , the stress distribution and deformation under different loads are obtained .

通过考虑簧片间的摩擦和接触，得到不同载荷下的应力分布和变形情况，计算了其强度和刚度。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。