Delphi 5 Define the tab width withi text in a memo field

Dear Experts,
    The below codes will compute the string and put in into a temp table memo field . What is the tab ( #9) width by default and how do I redefine it ( I want to make it smaller width between column ) .
( Delphi 5 ,Paradox ) . The string consist of Chinese character , and I want to put string in memo field .

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with sqlMaster do begin
    while (not Eof) do begin
        iCount :=iCount +1;
        s1 := s1 + Trim(SubStr(sqlMasterName.AsString ,iLen +1,6))+#9;
        if iCount =12 then s1:= Trim(s1) + #13;
        Next;
     end;
end;
with tbltemp  do begin
   Append;
   fieldByName('MemoField').Asstring := s1;
   post;
end;