求高手

Error in job Job-110: SURFACE ASSEMBLY__PICKEDSURF81 IS NOT CONTINUOUS OR IT IS COMPOSED OF TWO OR MORE REGIONS JOINED AT DISCRETE NODES. THE NUMBER OF DISCONNECTED REGIONS OR REGIONS JOINED AT DISCRETE NODES IS 4. IF THIS PROBLEM IS CAUSED BY THE INABILITY OF THE CODE TO TRIM THE SURFACE PROPERLY, RESPECIFY THE SURFACE BY SPECIFYING BOTH THE ELEMENT AND FACE NUMBER. USE AVAILABLE POST PROCESSOR TO VISUALIZE THIS SURFACE.
Job Job-110: Analysis Input File Processor aborted due to errors.
Error in job Job-110: Analysis Input File Processor exited with an error.
Job Job-110 aborted due to errors.
这是怎么回事？做接触时怎么做呀？各位大侠？