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2、b3.b4.4. 5. 1. 2. 6 1. 2. 1. 2. 1. 2. 1. ,1,!1 234/51/313/410/31/25/65/1111/121/101/210.65=13/200.8=4/52.25=9/40.24=6/252.05=41/200.375=3/812/712/731/1223/47/604/1525/365/641/95/1261/67/40.99.1 5326417 0.08=4/500.35=7/200.625=25/241.15=23/201. 65=33/20=13/152/35/6-1/416/7473/811/42727/401/4x=0x=1.3x
3、=0.58x=20/391/11/60.897/853.54/15130/34503/29 .103/200.750.75300.20.303/28/152/348/54/7=7/51/98/15421-3/8=5/491-2/5=15 47/45103/35/80.60.71116/8121/5600400016/33/10=8/516/51/2=8/512130.350.641.455/12153/5=94/52/3=1.24/75/9=20/633/49/10=5/6x=15/8x=7/16x=8/1520/312=5/920/35/9=124/31/52/5,120.507/58/5=
4、56/25141557175/9024/9075=24/9011/101/370.04240.120.62.0350.81.190.51.279/411.58.519/125/61/947/1554/53/45/6=17/122. 3. 4. . . 5. 1712/31/1213/241.134/370/36.526/725/33/22043/31/35/124/9=5/2712-4/5=56/55/62+4/72=125/4212-11/5-11/57/10=69/1018 19347/40013/42222/7x=5/24x=41/39x=19/36x=1/83/5+1/4=17/203
5、5/24-7/8+5/12=13/243/821/3=1/435.735.7-4.6=66.834.52000100(0)14201523490246612555666243071281241510100 _ 98081043.96mm2113672012811391. 2 3 4 5 6 7 89 10 11 12 13 14 15 1617 18 19 20 21 22 23 2425 26 27 28 29 30 31 321420152349024661 255566 6243071281241510100 88 98081043.96mm201301 23.20.8723.2 23.20.870.87 3.61.323.66. 60.823.6 5.81.260.5812.623212373837. 2123 3.212.3 32.12.3 32.10.23 73.832.3 7.3830.2338.00 4 32 3 , 2 45 512.5100 60.54 73.8484 , 3.8484? 3.84444? 3.84235? 89.82.93 9a, 1018cm3.6cm cm2116.3m21.4m1.2m m12 45337 13 14 15202