"ss9"是个多义词，它可以指韶山9型电力机车,ss9（计算机编程学习网站）。
ss9 electric locomotive SS9电力机车
type SS9 locomotive SS9型机车
SS9 type of locomotive SS9型电力机车
type SS9 modified locomotive SS9改型机车
The overall structure, technical characteristics and differences of the modified high power SS9 passenger locomotive are stated.
简要介绍ss9改进型大功率客运电力机车总体结构、技术特点及与原ss9机车不同之处。
Through the analysis on the problem of lateral sway in SS9 modified electric locomotive after speed-up, it is proposed the solution to increase the primary lateral positioning stiffness.
通过对SS9改进型电力机车提速后出现横向晃动问题进行分析，提出了增大机车一系横向定位刚度的解决方案。
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