... 43 83 36 49 89 99 626 Mb(l/skm2) 53 38 65 30 57 25 34 61 75 438 ∆Ma 8,44 -15,56 25,44 -26,56 13, 44 -33 ,56 -20,56 19,44 29,44 ∆Mb 4 ,33 -10,67 16 ,33 -18,67 8 ,33 - 23, 67 -14,67 12 ,33 26 ,33 Trang 31 ... ∆Ma.∆Mb 36 ,55 166, 03 415,44 495,88 111,96 794 ,37 30 1,62 239 ,70 775,16 33 36,71 ∆Ma2 71, 23 242,11 647,19 705, 43 180, 63 1126,27 422,71 37 7,91 866,71 4640,16 ∆Mb2 18,15 1 13, 85 266,67 34 8,57 69 ,39 560,27 ... sau: Bng 3- : Láûp bng toạn theo phỉång phạp âỉåìng thêch håüp STT Hmaxi (m) Sàõp xãúp Hmax÷Hmin (1) (2) (3) 10 11 12 13 Σ 37 30 18 43 20 15 41 17 40 22 23 27 31 36 4 43 41 40 37 31 30 27 23 22 20...