墙高断面积使用墙高断面积 20.9231.4542.0352.6663.3474.0784.8695.69106.57117.5128.49139.521410.6120.921.453y = 0.000007 x4 - 0.000208 x3 + 0.027441 x2 + 0.394369 x + 0.023916 45671011122.032.663.344.074.865.696.577.518.49139.5311.27.70y = 0.000007 x4-0.000208 x3+ 0.027441 x2+ 0.394369 x + 0.023916 151413121110914, 10.6113, 9.5212, 8.4911, 7.510, 6.579, 5.698, 4.867, 4.076, 3.345, 2.6, 2.033, 1.452, 0.92墙高对应断面积多项式(墙高对应断面积)断面积876543210012345678墙高9101112131415
