查询词典 friction breccia

However, POM/PEO interfibrillar segregation and the interspherilute segregation crystalline structures seem unfavourable for the toughness of the blends.5. PEO can improve the friction and wear properties of POM/PEO blends because PEO in the blend melts during friction and transfers to the friction surface, forming a lubricative layer.

磨痕宽度则先减小后增加，这是因为随PEO含量增加，其结晶结构发生了变化，无定形PEO与POM微纤晶穿插有利于减小磨痕宽度。6。

A true model of friction would include separate cases for static friction ( for a body at rest against a surface ) and kinetic friction (for a body in motion against a surface), but we will consider just one case.

那么这里的质量其实就没有那么重要了，事实上，你可以简化你的代码，假设物体的质量为1，根据牛顿第二定律使得加速度=力。

Despite the many advantages over asbestos-based friction material, thermal decomposition or liquescence of phenolic resin due to frictional heating can cause semi-metallic friction material to fade away (a phenomenon of friction decline with operation time).

中文摘要半属基摩擦材主要是使用一种或多种耐热的树脂(以酚醛树脂最为广泛使用)为基材，添加各属粉末或纤维以强化基材，并添加润剂、摩擦调整剂等增加材的磨耗性能，其成份中通常含有超过50 wt%的属成份。

The topographical parameters have been analyzed by taking into account the thermal effect during the friction process. As the results, three kinds of typical topographical features have been observed for the worn surfaces of C G iron with various P content. Namely, C G iron with 0.05% P, 1.30% P, and 0.70% P show worn surfaces characterized by groove ridge, peak pits and their combined topography. The C G iron specimen with peak pits type worn surface topography showes the lowest wear rate and highest friction coefficient, while that with groove ridge type worn surface topography shows the highest wear rate and lowest friction coefficient. The groove ridge type worn surface has a relatively large value of surface height deviation and void volume ratio and negative large value of skewness, which is contrary to the peak pits topography.

结果表明：度销磨损表面主要呈现犁沟型、孤岛型及二者的混合型3种形貌特征，其中具有孤岛型磨损表面形貌特征的试样的摩擦系数较高，磨损率较低；而具有犁沟型磨损表面形貌特征的试样的摩擦系数最低，磨损率最高，分析表面形貌参数发现：犁沟型表面形貌具有最大的表面高度偏差和表面空隙率及高负值的表面高度分布参数；而孤岛型表面形貌的表面高度偏差和表面空隙率最小，表面高度分布参数为高正值。

The test curve of side skin friction resistance of pile is simplified linearly. The distribution of skin friction resistance is controlled by two factors: the maximum value of negative skin friction resistance and depth ratio of neutral plane. Thus, the simplified linear calculation model of rigid pile composite ground is established.

作者还根据桩体侧摩阻力的试验曲线，进行线性简化，由桩顶的负摩阻力最大值及中性面深度比控制全桩长的侧摩阻力分布计算，从而，建立了刚性桩复合地基桩体侧摩阻力线性简化计算模型。

Considering the effect of the angle of internal friction on the inclination of sliding plane of soils behind retaining wall, circular and catenary, the two shapes of minor principal stress arch are theoretically analyzed. According to the shapes of minor principal stress arch, the coefficients of earth pressure corresponding to different angle of internal friction and that of wall friction are gained.

为克服现有考虑土拱效应的土压力计算方法不能考虑墙土摩擦角变化对挡土墙后土体滑裂面的影响的不足，考虑墙土摩擦角变化对挡土墙后上体滑裂面倾角的影响，对圆弧和悬链线两种拱形分别进行了分析，并与现有方法计算结果进行了比较。

The substitution of rolling friction for sliding friction results in a very comsiderable reduction in friction.

用滚动摩擦代替滑动摩擦，就会导致摩擦力的大量减少。

The substitution of rolling friction for sliding friction results in a very considerable reduction in friction.

用滚动摩擦代替滑动摩擦，结果使摩擦大大减少。

Aiming at the friction problem of metal deformation in stretch reducing course, a friction model has been established to solve the contact friction problem in rolling course simulation accurately.

针对张力减径过程中金属变形的摩擦问题，建立了摩擦模型，比较准确地解决了轧制过程仿真时的接触摩擦问题。

Main innovation and study achievements are described as follows:(1) A set of friction noise testing system was set up on the pin-on tester. In the process of friction testing in which the TRIP steel with transformation characteristics is continuously sliding in unilateralism, variety rule of the friction noise intensity was studied.

本文的主要创新和研究成果体现在以下方面：(1)在销盘摩擦磨损试验机上建立了一套摩擦噪声测试系统，研究了具有相变特征的TRIP钢在单向连续滑动的摩擦试验过程中，摩擦噪声的强度的变化规律。

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？