[求助] cBR测力环工作曲线 [复制链接]

力kN             指示器示值（mm）[‘ê5‚˳bbs.3c3t.comm‚´ædMևß
0                    1.000[‘ê5‚˳bbs.3c3t.comm‚´ædMևß
3                    1.278[‘ê5‚˳bbs.3c3t.comm‚´ædMևß
5                    1.458[‘ê5‚˳bbs.3c3t.comm‚´ædMևß
10                    1.898[‘ê5‚˳bbs.3c3t.comm‚´ædMևß
15                    2.340[‘ê5‚˳bbs.3c3t.comm‚´ædMևß
20                    2.790[‘ê5‚˳bbs.3c3t.comm‚´ædMևß
25                    3.242[‘ê5‚˳bbs.3c3t.comm‚´ædMևß
30                    3.700[‘ê5‚˳bbs.3c3t.comm‚´ædMևß
a  b的单位为N/0.01mm[‘ê5‚˳bbs.3c3t.comm‚´ædMևß
急求次应力环方程Y=ax+b 中a  b的值分别为多少[‘ê5‚˳bbs.3c3t.comm‚´ædMևß