two sections.apwz

*** SEVERE ERROR
      COLUMN NOT IN MASS BALANCE.
      CHECK FEEDS, PRODUCTS, AND COL-SPECS SKWS.

  *** SEVERE ERROR
      FLASH CALCULATIONS FAILED TO CONVERGE IN  9  ITERATIONS.   BUBBLE POINT
      CALCULATION HAS DRIVEN THE TEMPERATURE DOWN TO THE LOWER LIMIT OF
      42.6161 DEGREE K.  BUBBLE POINT TEMPERATURE MAY NOT EXIST AT THE
      SPECIFIED PRESSURE.

  *   WARNING
      REST OF BLOCK BYPASSED DUE TO SEVERE ERROR.

CHECK FEEDS, PRODUCTS, AND COL-SPECS SKWS.
检查进料、产品还有什么啊，最后的COL-SPECS SKWS是什么意思