查询词典 friction

The Effect of Surface Treatments on Wear and Friction of PTFE and HDPE I .

表面处理对PTFE和HDPE摩擦磨损的影响——Ⅰ。

In such occasions, we would rather increase the friction of the surface than decrease it.

2在这些情况下，与其减少表面摩擦力，倒不如增加这种力。

It also discussed the effect of the friction on contact surface.

论文还讨论了摩擦对界面接触应力的影响，指出在接触界面上即存在滑动区，也存在粘连区。

No friction between the surface of the road and our feet, we could not walk at all.

通过倒装省if的虚拟语气在条件状语从句中的应用。

To cause to move along a surface with friction and pressure.

使产生摩擦的动作：使…受摩擦力和压力在某个表面上移动

No friction between the surface of the road and our feet, we could not walk at all.

请问这里面的正确答案应该选什么？为什么会选这个答案。

Valve in operation, the total surface friction wear.

阀门在操作过程中，摩擦的表面总的磨损量。

Even a zero friction surface can be obtained.

甚至可以得到零摩擦表面。

The balance coefficients relate to the ratio of the two material on the friction surface.

稳定摩擦系数的数值等于基体材料的和增强体材料的摩擦系数的加权平均值。

The results provide theoretical proof for the manufacturing of friction anisotropy surface.

研究结果对仿生制造摩擦各向异性表面提供实验依据。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。