出差的变更：比原计划要延长出差的时间时，及时与关联部门负责人取得联络，

出差的变更：比原计划要延长出差的时间时，及时与关联部门负责人取得联络，
并在回公司后更改时间。

Results (English) 1:

Travel changes: extended travel time than originally planned, contact with the heads of departments in a timely manner, And time changes back to the company.

Results (English) 2:

Travel changes: more than originally planned to extend travel time to get in contact with the related department heads,
and change the time back to the company.

Results (English) 3:

Change: the time to extend the business trip, the head of the Department responsible person to get in contact with the related departments, and to change the time after the return of the company.