长度m 间距 mm 长度m 间距 mm 1 1.00 1.00 1000 20 16 2.468 78.98 8 0.00 100 1.00 200 0.395 5.99 16 2000 1.5795 4.46 89.43 0.785 113.921 2 31.50 0.56 800 14 12 1.209 465.25 8 4.00 100 27.50 250 0.395 131.24 16 2000 1.5795 55.55 652.04 15.826 41.2014 3 21.00 0.70 1200 25 26 3.856 2175.70 8 2.00 100 19.00 200 0.395 157.47 16 2000 1.5795 60.01 2393.18 23.738 100.815 4 21.00 0.87 1000 22 16 2.986 1044.96 8 4.00