查询词典 rolling friction

The results show that the brush-plating coating is even and compact from section plane with good toughness and adhesion. The microhardness of the coating is 230.6HV0.5 which is 3 times of cast aluminium substrate. The wear resistance of the coating is 3 times of cast aluminium substrate. But the friction coefficient of the coating is 0.70 which is more high than that of the substrate, which is favorable for the fixed conjugate between the axis sheath and the axis seat of the gear-box.

结果表明，镀层厚度分布均匀、致密，镀层与基体界面清晰，未出现氧化物夹层，镀层的韧性和结合强度均较好；测得碱性铜及铸铝基体的显微硬度分别为230.6、74.2HV0.5；碱性铜的镀制使基体表面显微硬度及耐磨性均提高了2倍多，磨损状况明显改善。

If the skin damage is the result of mechanical trauma or constant friction, the term abrasion may be used.

机械性外伤或持续摩擦引起的皮肤损害，可以用擦伤这一术语。

And different friction-conditions were used in different contact surface in order to really reflect the actual situation.

在不同接触区域采用不同的摩擦条件，真实地反映了成形过程实际情况。

The nonlinear Winkler-Kelvin sub-grade model is adopted in this simplified model and the complicated 3-D problems of the soil-single piles dynamic interaction are simplified to the 1-D, that is to say, the lateral nonlinear acting force of the soil to the pile shift is simulated with thehorizontal nonlinear springs which have the continuous uniform distribution, while the nonlinear spring restoring force is described by the deteriorated Bouc-Wen model; the radiation damping and material damping due to the energy dissipation and inner friction in the soil are displayed with the dashpots which are in parallel with the horizontal nonlinear springs.

该模型采用非线性Winkler-Kelvin地基模型，将复杂的地基土-单桩动力相互作用的三维问题，简化为一维问题，即，地基土对桩轴的横向非线性作用力，由随深度均匀分布的水平非线性弹簧模拟，非线性弹簧恢复力由退化的Bouc-Wen模型描述；地基土中由于能量耗散和内部摩擦而产生的幅射阻尼和材料阻尼，由与水平非线性弹簧并联的粘壶表示。

For a finite-security and finite- state financial market with three forms of friction: ask-bid spread, transaction costs and tax, by using the theory of convex analysis and some optimization techniques, a series of necessary and sufficient conditions are established to characterize weak and strong no-arbitrage respectively.

对存在买进卖出价差、交易费和税收三种摩擦和有限个可能的自然状态的金融市场，利用凸分析理论和最优化技术刻划出了强无套利和弱无套利的一系列充要条件，以往许多这方面的结果均是我们的特例。

In the absence of friction,belts would not be capable of conveying power from one machine to another.

1在没有摩擦的时候，皮带不能把一个机器的动力传导给另外一个。

Some physical and mechanical characteristics including weight per 1000 seeds, density , sizes, pressure damage and friction of cornus officinalis were determined starting from practical designs.

从实用设计出发，对山萸果的千粒重、容重、尺寸、挤压破坏和摩擦等物理机械特性进行了测定。

The temperature and shear stress undulate in the contact areas. It is shown that wear is not uniform in the time history and friction heat accelerates the birth of corrugation.

滑行运动中接触区温度和剪应力呈现出波动特性，这表明了滚滑接触中摩擦状态的不均匀性，温度场的波动加速了波磨的形成。

An obvious hypothesis, given that they reduce a lot of the friction and cost involved in keeping in touchwith other people.

这个显然的假说，建立在认为社交网络将降低和其他人交流和沟通的摩擦和成本基础上。

Several forms of Coulomb's Law are studied in detail when the foundation surface is rough and friction exists.

由于使用了统一的位移增量收敛判据，所得数值解具有很好的精度和可靠性。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？