系统实现了列车数据的输入、修改，并根据数据的更新自动生成列车运行管理图。

In this system, the management graphs of trains are generated automatically according to the renewed data.

youdao

系统实现了列车数据的输入、修改，并根据数据的更新自动生成列车运行管理图。

In this system, the management graphs of trains are generated automatically according to the renewed data.

youdao