Thus a new project must be advanced by the railway research department that how to operate the reception and departure of train safely in improper conditions.
这就给铁路科研部门提出了一个新的课题—如何在非正常情况下进行安全可靠的接发列车作业。
Thus a new project must be advanced by the railway research department that how to operate the reception and departure of train safely in improper conditions.
这就给铁路科研部门提出了一个新的课题—如何在非正常情况下进行安全可靠的接发列车作业。
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