查询词典 rolling friction

Experimental results show that: bearing capacity of JPP is thirty percent higher than that of cast-in-place pile which has the same length and diameter with JPP. The deformation of JPP is controlled by core pile; axial force distribution of PHC is different with soil-cement; and their axial force ratio in same section is their elastic modulus ratio. Distribution of inner and outer friction resistance is similar; and the inner friction is about 1.62 times of the outer one; it is about the ratio of JPP diameter and PHC diameter. Furthermore, the relation between friction resistance and relative displacement is similarly hyperbolic; and the relation between dip resistance and displacement is also hyperbolic.

试验结果表明，JPP桩与同桩长、同桩经灌注桩相比承载力高30%以上；JPP桩变形由芯桩控制，管桩轴力分布与水泥土轴力分布规律不一致，但同一截面上管桩和水泥土的轴力比值约为其弹性模量的比值；内外摩阻沿桩身的分布规律类似，内摩阻是外摩阻的1.62倍左右，约为JPP桩直径和管桩直径的比值；桩侧摩阻力与桩土相对位移近似双曲线分布，桩端阻力和桩端位移也近似双曲线分布。

ABSTRACT Linear Motion Guide is a new kind of rolling functional unit with the advantages of simple structure, small difference between static friction force and kinetic friction force, high setting accuracy andgood stability of high precision, etc..

滚动直线导轨副是新兴的滚动功能部件，具有结构简单、动静摩擦系数小、定位精度高、精度保持性好等优点。

It involves a simple mechanical principle: sliding friction, rolling friction small.

它涉及一个简单的机械原理：滑动摩擦大、滚动摩擦小。

It involves a simple mechanical principle: a large sliding friction, rolling friction small.

它涉及一个简单的机械原理：滑动摩擦大、滚动摩擦小。

Friction.1. Friction causes a rolling ball to stop finally.

摩擦力使得一只滚动的球最终停了下来。

In fact, M0 accounts for the additional external sources of friction, together with the "hydrodynamic" component of rolling friction, which also has a load dependent part.

实际上，M0代表额外的外部摩擦来源，再加上滚动摩擦中的"流体动力"成份，而这一成份中也有一部分与负荷相关。

"Friction",Friction causes a rolling ball to stop finally.

&，&摩擦力使得一只滚动的球最终停了下来&，，&Friction的中文意思为对流摩擦力加热辐射

Determine (1)the angle acceleration of the tub wheel,(2) the tensile force of the rope,(3) the reaction forces at point O on the bearing,(4)the friction force between the cylinder and the inclined plane (neglecting the rolling friction).

在图示机构中，沿斜面向上作纯滚动的圆柱体和鼓轮O均为均质物体，各重为P和Q，半径均为R，绳子不可伸长，其质量不计，斜面倾角，如在鼓轮上作用一常力偶矩M。

Companies are the main product categories are: 1, iron-based friction material: including medium and heavy truck powder brake pads, brake-watt tank track; Engineering Machinery (such as forklifts, continuous casting rolling mill, etc.) brake pads, clutch friction films and so on.

公司现主要产品类别有： 1、铁基摩擦材料：包括中、重型载重汽车粉末冶金刹车片、坦克履带制动瓦；工程机械刹车片、离合器摩擦片等。

The results indicate that, rolling with lubrication can reduce friction and improve production efficiency. The surface roughness and quality of aluminum after rolling are also decreased at same time.

结果显示轧制润滑可以减小摩擦，提高生产效率；同时又使得轧后铝板表面粗糙度降低，表面质量明显改善。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48