do this sentence has two meanings?

In the absence of further information, we would probably assume that the university did not close a department, but this is not specified in the sentence, so yes, it could have two possible meanings.
"The university successfully (unsuccessfully) resisted pressure to close one of its departments." would make it clear.

No - it means only the second. The pressure was to close the department and the university did not do so.

Edit: I posted a few seconds after BlueJay. I cannot make that other meaning make sense to me at all.

thanks ,so why here does infinitive serve as an attributive rather than an indicator of purpose?
that is " the university resisted pressure for the purpose of closing one of its departments."

Neither of the OP meanings match the sentence very well. I had in mind:
The university successfully resisted pressure to close a department, and Sawdust Studies was saved.
The university resisted pressure to close a department for over three years, but mounting budget cuts and the grade inflation scandal sealed the fate of the Sawdust Studies department.

I can only see "People said they should close Sawdust Studies, and pressured them to do so, but the university resisted that pressured and did not close it."

BarbaraPAI can only see "People said they should close Sawdust Studies, and pressured them to do so, but the university resisted that pressured and did not close it."

I agree that resisted pressure would be more likely to be used in a description of a successful fight for Sawdust Studies, but I think resisted pressure for a while, but event