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超链接,弹簧伸长/cm,弹簧总长/cm,拉力F/N,6,5,4,3,2,1,次数 内容,39.30,37.40,35.35,33.4,31.30,29.35,27.35,25.35,数值(cm),L6,L5,L4,L3,L2,L1,Lx,L0,代表符号,0.08,0.06,0.04,0.02,0.10,1,0.32,0.24,0.16,0.08,0.05,2,0.16,0.12,0.08,0.04,0.05,1,1 000,750,500,250,拉力/N 伸长量 /cm 截面积/cm2,长度/m,