江恩正方形图 970965960955950945 935930925920915910 975750745.74073573025 720715710705700905 980755570565560555 550 545540535530695900 985760575430425420 415 410405400525690895 990765580435330325320 315310395520685890 995770585440335270 265 260305390515680885 1000775590445340275250 255300385510675880 1005780595450345280285 290295380505670875 1010785600455350355 60 365370375500665870 1015790605460465470 475 480485490495660865 1020795610615620625 630 635640645650655860 805810815820 825 30835840845850855 10301035104010451050105511060 106510701075108010851090 图9-2江恩正方形图一、江恩正方形图