因此，船舶尾轴架结构的优化设计是一个很重要的问题。

Therefore, the optimizing of propeller shaft bracket is a very important issue.

youdao

因此，船舶尾轴架结构的优化设计是一个很重要的问题。

Therefore, the optimizing of propeller shaft bracket is a very important issue.

youdao