crown contact 树冠接触
The NWCS "Triple Crown" chess tournament finishes this week. The winners from each catagory will receive trophies. For details of the tournament, please contact Mr. Ifay Zhang directly.
北威中文学校的棋艺比赛将继续举行﹐详细比赛细节请向棋艺课张一飞老师联络。 各组优胜者将得到奖杯。
The paper discusses the necessity of applying double stepped backup rolls, and describes the methods for calculating the contact length and stepped depth and work roll crown.
论述了采用双阶梯支承辊的必要性。 提出了接触长度、阶梯深度及工作辊凸度的计算方法。
The multitooth contact problem of the crown gear coupling is analysed by using 3 D BEM. Actual measurements on a specially designed test bed are made.
本文首先应用三维弹性边界元方法对一鼓形齿联轴器的多齿接触问题进行了数值计算分析，然后在专用试验台架上作了相关实测研究。
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