The paper tests bearing capacity of steel wire rolls track bearing, analyzes and calculates rigidity of principalstructure.
文中对钢丝滚道轴承的承载能力进行了校核，对主要结构件的刚度进行了分析计算。
2
The moving characteristics and principles were found through computing. It provided the theory foundation for improving the structure and working principal of the 7NB mud pump.
Early deficiencies of concrete building, including flaws, cracks, and fractures, have been thought one of principal intrinsic predisposing causes, which lead to structure durability inactivation.