rate of roll造句

• Four contact state depending on rate of rolling / sliding between the couple of contact element were studied based on hertz contact model , and the results was shown that the rate of slide would affect the distribution of pressure in contact area and stress in the half plane
  研究表明安定状态随载荷的大小而变化，其残余应力和应变累积的大小与外加载荷成正比，并对计算中的一些问题进行了分析探讨。