1.52[t+1/0.06292(e^(-0.06292t)-1)]=5.92
0.06292t+e^(-0.06292t)=4.89473
令x=0.06292t,方程为：
x+1/e^x=4.489473,由数值解法得：
x=4.47812...
t=71.1716..
1.52[t+1/0.06292(e^(-0.06292t)-1)]=5.92
0.06292t+e^(-0.06292t)=4.89473
令x=0.06292t,方程为：
x+1/e^x=4.489473,由数值解法得：
x=4.47812...
t=71.1716..