韶山7型电力机车 meaning in Chinese

china railways ss7

Prolonging the fatigue life of the hbbb for the ss7 - type electric locomotive relies on improving cast process and cast quality
提高韶山7型电力机车抱轴箱体使用寿命的出路在于改进铸造工艺，提高铸件质量。
Summed up is the process of the crack treatment on spot , the theory analysis and the design improvement of the hugging - bearing box body ( hbbb ) for ss7 - type electric locomotive
全面总结了韶山7型电力机车抱轴箱体在使用中发生裂纹的现场处理、理论分析和设计改进的过程。
Put forward is the future plan on the improvement of the forge - weld hbbb , which is helped to research and design of the hbbb for the ss7 - type electric locomotive and other electric - driving locomotives in the future
提出了锻焊抱轴箱体攻关工作的进一步设想，对今后韶山7型电力机车抱轴箱体的进一步攻关及其它电传动机车抱轴箱体的设计和研究，有一定的借鉴作用。