1) pure rolling stage

纯滚动阶段
1.
The results show ed that m otion process is divided into pure rolling stage and slippingstage.
发现了全运动过程分为纯滚动阶段和滑动阶段,从而修正了以往的结
2) the Pure Period

纯洁阶段
1.
American historian J·M·Blum holds that the year from 1867 and the following 25 years or longer is the Pure Period in American history.
布卢姆认为1867年以后的25年或更长一些是美国历史上的“纯洁阶段”。
3) stage of progressive exploration and development

滚动勘探开发阶段
4) pure roll

纯滚动
1.
A new method of pure roll straightening is put forward in this article.

提出了一种纯滚动矫直的新方法,解决了钢筋矫直过程中的划伤问题,文中介绍了纯滚动矫直方法的原理,并叙述了结构参数的确定及力能参数的计算方法。
2.
A new method of pure roll straitening is put forward in this article.

提出了一种纯滚动矫直的新方法 ,解决了高表面质量的不锈钢钢筋的无划伤矫直问题 。
5) Pure rolling

纯滚动
1.
The design idea and mechanism of a new type accelerated pure rolling contact fatigue test rig for bearing ball with three contact points were introduced, for overcoming the disadvantages that existed in the current test rigs such as in rolling/slide working conditions or requiring some appendages.
设计了一种新型三点接触式纯滚动轴承球的强化接触疲劳寿命试验机。
2.
By using the spure rolling condition ,this paper derives the relative equation between φ 0 and μ is and points out a miatake in paper .
从刚体纯滚动必须满足的条件出发 ,推出球沿圆球形轨道运动开始作有滑滚动时的角 φ0 与静摩擦系数 μ的关系式 ,纠正了文献 [1]中的不妥。
6) complete rolling

纯滚动
1.
Design of the Automobile Veering Mechanism with Complete Rolling;

纯滚动汽车转向机构设计
2.
The double guide rod automotive steering actuator made declination of two-sided automotive wheels fully satisfy requirement of complete rolling theoretical,therefore it could greatly reduce abrasion of automotive tyre.
介绍一种适合于齿轮齿条式汽车转向系统的双导杆式转向传动机构;在汽车转向过程中,该机构可使两侧车轮的偏转角度关系始终严格满足纯滚动理论要求,从而减小汽车轮胎的磨损;该转向传动机构不仅设计简单,而且和传统转向系统相比,能实现更小的转弯半径。
补充资料:纯纯
1.诚挚貌。
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