1) The title bar should be drawn with a magnification of 30 times, and it will change back to its original size when printed. The equipment column is handled in the same way. 2) The dimension should be changed to the global scale of 30. 3) The text height should be set to 30*3 and 3mm after printing, and other text descriptions should be treated similarly. 4) There are also non-proportional coincidence and graphics (such as corner marks, etc. ), all magnified 30 times. If a small picture is placed in a picture of other scales, it should be drawn at a magnification of 30 times, and printed at the scale of the main picture.